---
_id: '11417'
abstract:
- lang: eng
  text: "Over the past few years, the field of quantum information science has seen
    tremendous progress toward realizing large-scale quantum computers. With demonstrations
    of quantum computers outperforming classical computers for a select range of problems,1–3
    we have finally entered the noisy, intermediate-scale quantum (NISQ) computing
    era. While the quantum computers of today are technological marvels, they are
    not yet error corrected, and it is unclear whether any system will scale beyond
    a few hundred logical qubits without significant changes to architecture and control
    schemes. Today's quantum systems are analogous to the ENIAC (Electronic Numerical
    Integrator And Computer) and EDVAC (Electronic Discrete Variable Automatic Computer)
    systems of the 1940s, which ran on vacuum tubes. These machines were built on
    a solid, nominally scalable architecture and when they were developed, nobody
    could have predicted the development of the transistor and the impact of the resulting
    semiconductor industry. Simply put, the computers of today are nothing like the
    early computers of the 1940s. We believe that the qubits of future fault-tolerant
    quantum systems will look quite different from the qubits of the NISQ machines
    in operation today. This Special Topic issue is devoted to new and emerging quantum
    systems with a focus on enabling technologies that can eventually lead to the
    quantum analog to the transistor. We have solicited both research4–18 and perspective
    articles19–21 to discuss new and emerging qubit systems with a focus on novel
    materials, encodings, and architectures. We are proud to present a collection
    that touches on a wide range of technologies including superconductors,7–13,21
    semiconductors,15–17,19 and individual atomic qubits.18\r\n"
acknowledgement: "We would like to thank all of the authors who contributed to\r\nthis
  Special Topic. We would also like to thank the editorial team at\r\nAPL including
  Jessica Trudeau, Emma Van Burns, Martin Weides,\r\nand Lesley Cohen."
article_number: '190401'
article_processing_charge: No
article_type: letter_note
author:
- first_name: Anthony J.
  full_name: Sigillito, Anthony J.
  last_name: Sigillito
- first_name: Jacob P.
  full_name: Covey, Jacob P.
  last_name: Covey
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
- first_name: Karl
  full_name: Petersson, Karl
  last_name: Petersson
- first_name: Stefan
  full_name: Preble, Stefan
  last_name: Preble
citation:
  ama: 'Sigillito AJ, Covey JP, Fink JM, Petersson K, Preble S. Emerging qubit systems:
    Guest editorial. <i>Applied Physics Letters</i>. 2022;120(19). doi:<a href="https://doi.org/10.1063/5.0097339">10.1063/5.0097339</a>'
  apa: 'Sigillito, A. J., Covey, J. P., Fink, J. M., Petersson, K., &#38; Preble,
    S. (2022). Emerging qubit systems: Guest editorial. <i>Applied Physics Letters</i>.
    American Institute of Physics. <a href="https://doi.org/10.1063/5.0097339">https://doi.org/10.1063/5.0097339</a>'
  chicago: 'Sigillito, Anthony J., Jacob P. Covey, Johannes M Fink, Karl Petersson,
    and Stefan Preble. “Emerging Qubit Systems: Guest Editorial.” <i>Applied Physics
    Letters</i>. American Institute of Physics, 2022. <a href="https://doi.org/10.1063/5.0097339">https://doi.org/10.1063/5.0097339</a>.'
  ieee: 'A. J. Sigillito, J. P. Covey, J. M. Fink, K. Petersson, and S. Preble, “Emerging
    qubit systems: Guest editorial,” <i>Applied Physics Letters</i>, vol. 120, no.
    19. American Institute of Physics, 2022.'
  ista: 'Sigillito AJ, Covey JP, Fink JM, Petersson K, Preble S. 2022. Emerging qubit
    systems: Guest editorial. Applied Physics Letters. 120(19), 190401.'
  mla: 'Sigillito, Anthony J., et al. “Emerging Qubit Systems: Guest Editorial.” <i>Applied
    Physics Letters</i>, vol. 120, no. 19, 190401, American Institute of Physics,
    2022, doi:<a href="https://doi.org/10.1063/5.0097339">10.1063/5.0097339</a>.'
  short: A.J. Sigillito, J.P. Covey, J.M. Fink, K. Petersson, S. Preble, Applied Physics
    Letters 120 (2022).
date_created: 2022-05-29T22:01:53Z
date_published: 2022-05-12T00:00:00Z
date_updated: 2023-08-03T07:16:20Z
day: '12'
department:
- _id: JoFi
doi: 10.1063/5.0097339
external_id:
  isi:
  - '000796002100002'
intvolume: '       120'
isi: 1
issue: '19'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1063/5.0097339
month: '05'
oa: 1
oa_version: Published Version
publication: Applied Physics Letters
publication_identifier:
  issn:
  - 0003-6951
publication_status: published
publisher: American Institute of Physics
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Emerging qubit systems: Guest editorial'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 120
year: '2022'
...
---
_id: '11591'
abstract:
- lang: eng
  text: We investigate the deterministic generation and distribution of entanglement
    in large quantum networks by driving distant qubits with the output fields of
    a nondegenerate parametric amplifier. In this setting, the amplifier produces
    a continuous Gaussian two-mode squeezed state, which acts as a quantum-correlated
    reservoir for the qubits and relaxes them into a highly entangled steady state.
    Here we are interested in the maximal amount of entanglement and the optimal entanglement
    generation rates that can be achieved with this scheme under realistic conditions
    taking, in particular, the finite amplifier bandwidth, waveguide losses, and propagation
    delays into account. By combining exact numerical simulations of the full network
    with approximate analytic results, we predict the optimal working point for the
    amplifier and the corresponding qubit-qubit entanglement under various conditions.
    Our findings show that this passive conversion of Gaussian into discrete-variable
    entanglement offers a robust and experimentally very attractive approach for operating
    large optical, microwave, or hybrid quantum networks, for which efficient parametric
    amplifiers are currently developed.
acknowledgement: We thank T. Mavrogordatos and D. Zhu for initial contribution on
  the presented topic and K. Fedorov for stimulating discussions on entangled microwave
  beams. This work was supported by the Austrian Science Fund (FWF) through Grant
  No. P32299 (PHONED) and the European Union’s Horizon 2020 research and innovation
  programme under Grant Agreement No. 899354 (SuperQuLAN). Most of the computational
  results presented were obtained using the CLIP cluster [65].
article_number: '062454'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: J.
  full_name: Agustí, J.
  last_name: Agustí
- first_name: Y.
  full_name: Minoguchi, Y.
  last_name: Minoguchi
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
- first_name: P.
  full_name: Rabl, P.
  last_name: Rabl
citation:
  ama: Agustí J, Minoguchi Y, Fink JM, Rabl P. Long-distance distribution of qubit-qubit
    entanglement using Gaussian-correlated photonic beams. <i>Physical Review A</i>.
    2022;105(6). doi:<a href="https://doi.org/10.1103/PhysRevA.105.062454">10.1103/PhysRevA.105.062454</a>
  apa: Agustí, J., Minoguchi, Y., Fink, J. M., &#38; Rabl, P. (2022). Long-distance
    distribution of qubit-qubit entanglement using Gaussian-correlated photonic beams.
    <i>Physical Review A</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevA.105.062454">https://doi.org/10.1103/PhysRevA.105.062454</a>
  chicago: Agustí, J., Y. Minoguchi, Johannes M Fink, and P. Rabl. “Long-Distance
    Distribution of Qubit-Qubit Entanglement Using Gaussian-Correlated Photonic Beams.”
    <i>Physical Review A</i>. American Physical Society, 2022. <a href="https://doi.org/10.1103/PhysRevA.105.062454">https://doi.org/10.1103/PhysRevA.105.062454</a>.
  ieee: J. Agustí, Y. Minoguchi, J. M. Fink, and P. Rabl, “Long-distance distribution
    of qubit-qubit entanglement using Gaussian-correlated photonic beams,” <i>Physical
    Review A</i>, vol. 105, no. 6. American Physical Society, 2022.
  ista: Agustí J, Minoguchi Y, Fink JM, Rabl P. 2022. Long-distance distribution of
    qubit-qubit entanglement using Gaussian-correlated photonic beams. Physical Review
    A. 105(6), 062454.
  mla: Agustí, J., et al. “Long-Distance Distribution of Qubit-Qubit Entanglement
    Using Gaussian-Correlated Photonic Beams.” <i>Physical Review A</i>, vol. 105,
    no. 6, 062454, American Physical Society, 2022, doi:<a href="https://doi.org/10.1103/PhysRevA.105.062454">10.1103/PhysRevA.105.062454</a>.
  short: J. Agustí, Y. Minoguchi, J.M. Fink, P. Rabl, Physical Review A 105 (2022).
date_created: 2022-07-17T22:01:55Z
date_published: 2022-06-29T00:00:00Z
date_updated: 2023-08-03T11:58:16Z
day: '29'
department:
- _id: JoFi
doi: 10.1103/PhysRevA.105.062454
ec_funded: 1
external_id:
  arxiv:
  - '2204.02993'
  isi:
  - '000824330200003'
intvolume: '       105'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.48550/arXiv.2204.02993'
month: '06'
oa: 1
oa_version: Preprint
project:
- _id: 9B868D20-BA93-11EA-9121-9846C619BF3A
  call_identifier: H2020
  grant_number: '899354'
  name: Quantum Local Area Networks with Superconducting Qubits
publication: Physical Review A
publication_identifier:
  eissn:
  - 2469-9934
  issn:
  - 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Long-distance distribution of qubit-qubit entanglement using Gaussian-correlated
  photonic beams
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 105
year: '2022'
...
---
_id: '12088'
abstract:
- lang: eng
  text: We present a quantum-enabled microwave-telecom interface with bidirectional
    conversion efficiencies up to 15% and added input noise quanta as low as 0.16.
    Moreover, we observe evidence for electro-optic laser cooling and vacuum amplification.
article_number: FW4D.4
article_processing_charge: No
author:
- first_name: Rishabh
  full_name: Sahu, Rishabh
  id: 47D26E34-F248-11E8-B48F-1D18A9856A87
  last_name: Sahu
  orcid: 0000-0001-6264-2162
- first_name: William J
  full_name: Hease, William J
  id: 29705398-F248-11E8-B48F-1D18A9856A87
  last_name: Hease
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
- first_name: Liu
  full_name: Qiu, Liu
  id: 45e99c0d-1eb1-11eb-9b96-ed8ab2983cac
  last_name: Qiu
  orcid: 0000-0003-4345-4267
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Sahu R, Hease WJ, Rueda Sanchez AR, Arnold GM, Qiu L, Fink JM. Realizing a
    quantum-enabled interconnect between microwave and telecom light. In: <i>Conference
    on Lasers and Electro-Optics</i>. Optica Publishing Group; 2022. doi:<a href="https://doi.org/10.1364/CLEO_QELS.2022.FW4D.4">10.1364/CLEO_QELS.2022.FW4D.4</a>'
  apa: 'Sahu, R., Hease, W. J., Rueda Sanchez, A. R., Arnold, G. M., Qiu, L., &#38;
    Fink, J. M. (2022). Realizing a quantum-enabled interconnect between microwave
    and telecom light. In <i>Conference on Lasers and Electro-Optics</i>. San Jose,
    CA, United States: Optica Publishing Group. <a href="https://doi.org/10.1364/CLEO_QELS.2022.FW4D.4">https://doi.org/10.1364/CLEO_QELS.2022.FW4D.4</a>'
  chicago: Sahu, Rishabh, William J Hease, Alfredo R Rueda Sanchez, Georg M Arnold,
    Liu Qiu, and Johannes M Fink. “Realizing a Quantum-Enabled Interconnect between
    Microwave and Telecom Light.” In <i>Conference on Lasers and Electro-Optics</i>.
    Optica Publishing Group, 2022. <a href="https://doi.org/10.1364/CLEO_QELS.2022.FW4D.4">https://doi.org/10.1364/CLEO_QELS.2022.FW4D.4</a>.
  ieee: R. Sahu, W. J. Hease, A. R. Rueda Sanchez, G. M. Arnold, L. Qiu, and J. M.
    Fink, “Realizing a quantum-enabled interconnect between microwave and telecom
    light,” in <i>Conference on Lasers and Electro-Optics</i>, San Jose, CA, United
    States, 2022.
  ista: 'Sahu R, Hease WJ, Rueda Sanchez AR, Arnold GM, Qiu L, Fink JM. 2022. Realizing
    a quantum-enabled interconnect between microwave and telecom light. Conference
    on Lasers and Electro-Optics. CLEO: QELS Fundamental Science, FW4D.4.'
  mla: Sahu, Rishabh, et al. “Realizing a Quantum-Enabled Interconnect between Microwave
    and Telecom Light.” <i>Conference on Lasers and Electro-Optics</i>, FW4D.4, Optica
    Publishing Group, 2022, doi:<a href="https://doi.org/10.1364/CLEO_QELS.2022.FW4D.4">10.1364/CLEO_QELS.2022.FW4D.4</a>.
  short: R. Sahu, W.J. Hease, A.R. Rueda Sanchez, G.M. Arnold, L. Qiu, J.M. Fink,
    in:, Conference on Lasers and Electro-Optics, Optica Publishing Group, 2022.
conference:
  end_date: 2022-05-20
  location: San Jose, CA, United States
  name: 'CLEO: QELS Fundamental Science'
  start_date: 2022-05-15
date_created: 2022-09-11T22:01:58Z
date_published: 2022-05-01T00:00:00Z
date_updated: 2023-02-13T09:06:10Z
day: '01'
department:
- _id: JoFi
doi: 10.1364/CLEO_QELS.2022.FW4D.4
language:
- iso: eng
month: '05'
oa_version: None
publication: Conference on Lasers and Electro-Optics
publication_identifier:
  isbn:
  - '9781557528209'
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Realizing a quantum-enabled interconnect between microwave and telecom light
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '13057'
abstract:
- lang: eng
  text: 'This dataset comprises all data shown in the figures of the submitted article
    "Geometric superinductance qubits: Controlling phase delocalization across a single
    Josephson junction". Additional raw data are available from the corresponding
    author on reasonable request.'
article_processing_charge: No
author:
- first_name: Matilda
  full_name: Peruzzo, Matilda
  id: 3F920B30-F248-11E8-B48F-1D18A9856A87
  last_name: Peruzzo
  orcid: 0000-0002-3415-4628
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Grisha
  full_name: Szep, Grisha
  last_name: Szep
- first_name: Andrea
  full_name: Trioni, Andrea
  id: 42F71B44-F248-11E8-B48F-1D18A9856A87
  last_name: Trioni
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Peruzzo M, Hassani F, Szep G, et al. Geometric superinductance qubits: Controlling
    phase delocalization across a single Josephson junction. 2021. doi:<a href="https://doi.org/10.5281/ZENODO.5592103">10.5281/ZENODO.5592103</a>'
  apa: 'Peruzzo, M., Hassani, F., Szep, G., Trioni, A., Redchenko, E., Zemlicka, M.,
    &#38; Fink, J. M. (2021). Geometric superinductance qubits: Controlling phase
    delocalization across a single Josephson junction. Zenodo. <a href="https://doi.org/10.5281/ZENODO.5592103">https://doi.org/10.5281/ZENODO.5592103</a>'
  chicago: 'Peruzzo, Matilda, Farid Hassani, Grisha Szep, Andrea Trioni, Elena Redchenko,
    Martin Zemlicka, and Johannes M Fink. “Geometric Superinductance Qubits: Controlling
    Phase Delocalization across a Single Josephson Junction.” Zenodo, 2021. <a href="https://doi.org/10.5281/ZENODO.5592103">https://doi.org/10.5281/ZENODO.5592103</a>.'
  ieee: 'M. Peruzzo <i>et al.</i>, “Geometric superinductance qubits: Controlling
    phase delocalization across a single Josephson junction.” Zenodo, 2021.'
  ista: 'Peruzzo M, Hassani F, Szep G, Trioni A, Redchenko E, Zemlicka M, Fink JM.
    2021. Geometric superinductance qubits: Controlling phase delocalization across
    a single Josephson junction, Zenodo, <a href="https://doi.org/10.5281/ZENODO.5592103">10.5281/ZENODO.5592103</a>.'
  mla: 'Peruzzo, Matilda, et al. <i>Geometric Superinductance Qubits: Controlling
    Phase Delocalization across a Single Josephson Junction</i>. Zenodo, 2021, doi:<a
    href="https://doi.org/10.5281/ZENODO.5592103">10.5281/ZENODO.5592103</a>.'
  short: M. Peruzzo, F. Hassani, G. Szep, A. Trioni, E. Redchenko, M. Zemlicka, J.M.
    Fink, (2021).
date_created: 2023-05-23T13:42:27Z
date_published: 2021-10-22T00:00:00Z
date_updated: 2023-08-11T10:44:21Z
day: '22'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.5281/ZENODO.5592103
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
- open_access: '1'
  url: https://doi.org/10.5281/zenodo.5592104
month: '10'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
  record:
  - id: '9928'
    relation: used_in_publication
    status: public
status: public
title: 'Geometric superinductance qubits: Controlling phase delocalization across
  a single Josephson junction'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '9242'
abstract:
- lang: eng
  text: In the recent years important experimental advances in resonant electro-optic
    modulators as high-efficiency sources for coherent frequency combs and as devices
    for quantum information transfer have been realized, where strong optical and
    microwave mode coupling were achieved. These features suggest electro-optic-based
    devices as candidates for entangled optical frequency comb sources. In the present
    work, I study the generation of entangled optical frequency combs in millimeter-sized
    resonant electro-optic modulators. These devices profit from the experimentally
    proven advantages such as nearly constant optical free spectral ranges over several
    gigahertz, and high optical and microwave quality factors. The generation of frequency
    multiplexed quantum channels with spectral bandwidth in the MHz range for conservative
    parameter values paves the way towards novel uses in long-distance hybrid quantum
    networks, quantum key distribution, enhanced optical metrology, and quantum computing.
acknowledgement: "I thank Prof. Shabir Barzanjeh and Dr. Ulrich Vogl for the fruitful
  discussions.\r\n"
article_number: '023708'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
citation:
  ama: Rueda Sanchez AR. Frequency-multiplexed hybrid optical entangled source based
    on the Pockels effect. <i>Physical Review A</i>. 2021;103(2). doi:<a href="https://doi.org/10.1103/PhysRevA.103.023708">10.1103/PhysRevA.103.023708</a>
  apa: Rueda Sanchez, A. R. (2021). Frequency-multiplexed hybrid optical entangled
    source based on the Pockels effect. <i>Physical Review A</i>. American Physical
    Society. <a href="https://doi.org/10.1103/PhysRevA.103.023708">https://doi.org/10.1103/PhysRevA.103.023708</a>
  chicago: Rueda Sanchez, Alfredo R. “Frequency-Multiplexed Hybrid Optical Entangled
    Source Based on the Pockels Effect.” <i>Physical Review A</i>. American Physical
    Society, 2021. <a href="https://doi.org/10.1103/PhysRevA.103.023708">https://doi.org/10.1103/PhysRevA.103.023708</a>.
  ieee: A. R. Rueda Sanchez, “Frequency-multiplexed hybrid optical entangled source
    based on the Pockels effect,” <i>Physical Review A</i>, vol. 103, no. 2. American
    Physical Society, 2021.
  ista: Rueda Sanchez AR. 2021. Frequency-multiplexed hybrid optical entangled source
    based on the Pockels effect. Physical Review A. 103(2), 023708.
  mla: Rueda Sanchez, Alfredo R. “Frequency-Multiplexed Hybrid Optical Entangled Source
    Based on the Pockels Effect.” <i>Physical Review A</i>, vol. 103, no. 2, 023708,
    American Physical Society, 2021, doi:<a href="https://doi.org/10.1103/PhysRevA.103.023708">10.1103/PhysRevA.103.023708</a>.
  short: A.R. Rueda Sanchez, Physical Review A 103 (2021).
date_created: 2021-03-14T23:01:33Z
date_published: 2021-02-11T00:00:00Z
date_updated: 2023-08-07T14:11:18Z
day: '11'
department:
- _id: JoFi
doi: 10.1103/PhysRevA.103.023708
external_id:
  arxiv:
  - '2010.05356'
  isi:
  - '000617037900013'
intvolume: '       103'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2010.05356
month: '02'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
  eissn:
  - 2469-9934
  issn:
  - 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frequency-multiplexed hybrid optical entangled source based on the Pockels
  effect
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 103
year: '2021'
...
---
_id: '10644'
abstract:
- lang: eng
  text: The purpose of this application note is to demonstrate a working example of
    a superconducting qubit measurement in a Bluefors cryostat using the Keysight
    quantum control hardware. Our motivation is twofold. First, we provide pre-qualification
    data that the Bluefors cryostat, including filtering and wiring, can support long-lived
    qubits. Second, we demonstrate that the Keysight system (controlled using Labber)
    provides a straightforward solution to perform these characterization measurements.
    This document is intended as a brief guide for starting an experimental platform
    for testing superconducting qubits. The setup described here is an immediate jumping
    off point for a suite of applications including testing quantum logical gates,
    quantum optics with microwaves, or even using the qubit itself as a sensitive
    probe of local electromagnetic fields. Qubit measurements rely on high performance
    of both the physical sample environment and the measurement electronics. An overview
    of the cryogenic system is shown in Figure 1, and an overview of the integration
    between the electronics and cryostat (including wiring details) is shown in Figure
    2.
alternative_title:
- Bluefors Blog
article_processing_charge: No
author:
- first_name: Russell
  full_name: Lake, Russell
  last_name: Lake
- first_name: Slawomir
  full_name: Simbierowicz, Slawomir
  last_name: Simbierowicz
- first_name: Philip
  full_name: Krantz, Philip
  last_name: Krantz
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Lake R, Simbierowicz S, Krantz P, Hassani F, Fink JM. <i>The Bluefors Dilution
    Refrigerator as an Integrated Quantum Measurement System</i>. Helsinki, Finland:
    Bluefors Oy; 2021.'
  apa: 'Lake, R., Simbierowicz, S., Krantz, P., Hassani, F., &#38; Fink, J. M. (2021).
    <i>The Bluefors dilution refrigerator as an integrated quantum measurement system</i>.
    Helsinki, Finland: Bluefors Oy.'
  chicago: 'Lake, Russell, Slawomir Simbierowicz, Philip Krantz, Farid Hassani, and
    Johannes M Fink. <i>The Bluefors Dilution Refrigerator as an Integrated Quantum
    Measurement System</i>. Helsinki, Finland: Bluefors Oy, 2021.'
  ieee: 'R. Lake, S. Simbierowicz, P. Krantz, F. Hassani, and J. M. Fink, <i>The Bluefors
    dilution refrigerator as an integrated quantum measurement system</i>. Helsinki,
    Finland: Bluefors Oy, 2021.'
  ista: 'Lake R, Simbierowicz S, Krantz P, Hassani F, Fink JM. 2021. The Bluefors
    dilution refrigerator as an integrated quantum measurement system, Helsinki, Finland:
    Bluefors Oy, 9p.'
  mla: Lake, Russell, et al. <i>The Bluefors Dilution Refrigerator as an Integrated
    Quantum Measurement System</i>. Bluefors Oy, 2021.
  short: R. Lake, S. Simbierowicz, P. Krantz, F. Hassani, J.M. Fink, The Bluefors
    Dilution Refrigerator as an Integrated Quantum Measurement System, Bluefors Oy,
    Helsinki, Finland, 2021.
date_created: 2022-01-19T08:29:57Z
date_published: 2021-04-20T00:00:00Z
date_updated: 2022-01-19T09:11:33Z
day: '20'
department:
- _id: JoFi
keyword:
- Application note
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://bluefors.com/blog/integrated-quantum-measurement-system/
month: '04'
oa: 1
oa_version: Published Version
page: '9'
place: Helsinki, Finland
publication_status: published
publisher: Bluefors Oy
quality_controlled: '1'
status: public
title: The Bluefors dilution refrigerator as an integrated quantum measurement system
type: other_academic_publication
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '10645'
abstract:
- lang: eng
  text: "Superconducting qubits have emerged as a highly versatile and useful platform
    for quantum technological applications [1]. Bluefors and Zurich Instruments have
    supported the growth of this field from the 2010s onwards by providing well-engineered
    and reliable measurement infrastructure [2]– [6]. Having a long and stable qubit
    lifetime is a critical system property. Therefore, considerable effort has already
    gone into measuring qubit energy-relaxation timescales and their fluctuations,
    see Refs. [7]–[10] among others. Accurately extracting the statistics of a quantum
    device requires users to perform time consuming measurements. One measurement
    challenge is that the detection of the state-dependent\r\nresponse of a superconducting
    resonator due to a dispersively-coupled qubit requires an inherently low signal
    level. Consequently, measurements must be performed using a microwave probe that
    contains only a few microwave photons. Improving the signal-to-noise ratio (SNR)
    by using near-quantum limited parametric amplifiers as well as the use of optimized
    signal processing enabled by efficient room temperature instrumentation help to
    reduce measurement time. An empirical observation for fixed frequency transmons
    from recent literature is that as the energy-relaxation time \U0001D447\U0001D4471
    increases, so do its natural temporal fluctuations [7], [10]. This necessitates
    many repeated measurements to understand the statistics (see for example, Ref.
    [10]). In addition, as state-of-the-art qubits increase in lifetime, longer\r\nmeasurement
    times are expected to obtain accurate statistics. As described below, the scaling
    of the widths of the qubit energy-relaxation distributions also reveal clues about
    the origin of the energy-relaxation."
alternative_title:
- Bluefors Blog
article_processing_charge: No
author:
- first_name: Slawomir
  full_name: Simbierowicz, Slawomir
  last_name: Simbierowicz
- first_name: Chunyan
  full_name: Shi, Chunyan
  last_name: Shi
- first_name: Michele
  full_name: Collodo, Michele
  last_name: Collodo
- first_name: Moritz
  full_name: Kirste, Moritz
  last_name: Kirste
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
- first_name: Jonas
  full_name: Bylander, Jonas
  last_name: Bylander
- first_name: Daniel
  full_name: Perez Lozano, Daniel
  last_name: Perez Lozano
- first_name: Russell
  full_name: Lake, Russell
  last_name: Lake
citation:
  ama: 'Simbierowicz S, Shi C, Collodo M, et al. <i>Qubit Energy-Relaxation Statistics
    in the Bluefors Quantum Measurement System</i>. Helsinki, Finland: Bluefors Oy;
    2021.'
  apa: 'Simbierowicz, S., Shi, C., Collodo, M., Kirste, M., Hassani, F., Fink, J.
    M., … Lake, R. (2021). <i>Qubit energy-relaxation statistics in the Bluefors quantum
    measurement system</i>. Helsinki, Finland: Bluefors Oy.'
  chicago: 'Simbierowicz, Slawomir, Chunyan Shi, Michele Collodo, Moritz Kirste, Farid
    Hassani, Johannes M Fink, Jonas Bylander, Daniel Perez Lozano, and Russell Lake.
    <i>Qubit Energy-Relaxation Statistics in the Bluefors Quantum Measurement System</i>.
    Helsinki, Finland: Bluefors Oy, 2021.'
  ieee: 'S. Simbierowicz <i>et al.</i>, <i>Qubit energy-relaxation statistics in the
    Bluefors quantum measurement system</i>. Helsinki, Finland: Bluefors Oy, 2021.'
  ista: 'Simbierowicz S, Shi C, Collodo M, Kirste M, Hassani F, Fink JM, Bylander
    J, Perez Lozano D, Lake R. 2021. Qubit energy-relaxation statistics in the Bluefors
    quantum measurement system, Helsinki, Finland: Bluefors Oy, 8p.'
  mla: Simbierowicz, Slawomir, et al. <i>Qubit Energy-Relaxation Statistics in the
    Bluefors Quantum Measurement System</i>. Bluefors Oy, 2021.
  short: S. Simbierowicz, C. Shi, M. Collodo, M. Kirste, F. Hassani, J.M. Fink, J.
    Bylander, D. Perez Lozano, R. Lake, Qubit Energy-Relaxation Statistics in the
    Bluefors Quantum Measurement System, Bluefors Oy, Helsinki, Finland, 2021.
date_created: 2022-01-19T08:41:14Z
date_published: 2021-06-03T00:00:00Z
date_updated: 2022-01-19T09:11:39Z
day: '03'
department:
- _id: JoFi
keyword:
- Application note
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://bluefors.com/blog/application-note-qubit-energy-relaxation-statistics-bluefors-quantum-measurement-system/
month: '06'
oa: 1
oa_version: Published Version
page: '8'
place: Helsinki, Finland
publication_status: published
publisher: Bluefors Oy
quality_controlled: '1'
status: public
title: Qubit energy-relaxation statistics in the Bluefors quantum measurement system
type: other_academic_publication
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '9815'
abstract:
- lang: eng
  text: The quantum bits (qubits) on which superconducting quantum computers are based
    have energy scales corresponding to photons with GHz frequencies. The energy of
    photons in the gigahertz domain is too low to allow transmission through the noisy
    room-temperature environment, where the signal would be lost in thermal noise.
    Optical photons, on the other hand, have much higher energies, and signals can
    be detected using highly efficient single-photon detectors. Transduction from
    microwave to optical frequencies is therefore a potential enabling technology
    for quantum devices. However, in such a device the optical pump can be a source
    of thermal noise and thus degrade the fidelity; the similarity of input microwave
    state to the output optical state. In order to investigate the magnitude of this
    effect we model the sub-Kelvin thermal behavior of an electro-optic transducer
    based on a lithium niobate whispering gallery mode resonator. We find that there
    is an optimum power level for a continuous pump, whilst pulsed operation of the
    pump increases the fidelity of the conversion.
acknowledgement: NJL is supported by the MBIE Endeavour Fund (UOOX1805) and GL is
  by the Julius von Haast Fellowship of New Zealand. SM acknowledges stimulating discussions
  with T M Jensen.
article_number: '045005'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Sonia
  full_name: Mobassem, Sonia
  last_name: Mobassem
- first_name: Nicholas J.
  full_name: Lambert, Nicholas J.
  last_name: Lambert
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
- first_name: Gerd
  full_name: Leuchs, Gerd
  last_name: Leuchs
- first_name: Harald G.L.
  full_name: Schwefel, Harald G.L.
  last_name: Schwefel
citation:
  ama: Mobassem S, Lambert NJ, Rueda Sanchez AR, Fink JM, Leuchs G, Schwefel HGL.
    Thermal noise in electro-optic devices at cryogenic temperatures. <i>Quantum Science
    and Technology</i>. 2021;6(4). doi:<a href="https://doi.org/10.1088/2058-9565/ac0f36">10.1088/2058-9565/ac0f36</a>
  apa: Mobassem, S., Lambert, N. J., Rueda Sanchez, A. R., Fink, J. M., Leuchs, G.,
    &#38; Schwefel, H. G. L. (2021). Thermal noise in electro-optic devices at cryogenic
    temperatures. <i>Quantum Science and Technology</i>. IOP Publishing. <a href="https://doi.org/10.1088/2058-9565/ac0f36">https://doi.org/10.1088/2058-9565/ac0f36</a>
  chicago: Mobassem, Sonia, Nicholas J. Lambert, Alfredo R Rueda Sanchez, Johannes
    M Fink, Gerd Leuchs, and Harald G.L. Schwefel. “Thermal Noise in Electro-Optic
    Devices at Cryogenic Temperatures.” <i>Quantum Science and Technology</i>. IOP
    Publishing, 2021. <a href="https://doi.org/10.1088/2058-9565/ac0f36">https://doi.org/10.1088/2058-9565/ac0f36</a>.
  ieee: S. Mobassem, N. J. Lambert, A. R. Rueda Sanchez, J. M. Fink, G. Leuchs, and
    H. G. L. Schwefel, “Thermal noise in electro-optic devices at cryogenic temperatures,”
    <i>Quantum Science and Technology</i>, vol. 6, no. 4. IOP Publishing, 2021.
  ista: Mobassem S, Lambert NJ, Rueda Sanchez AR, Fink JM, Leuchs G, Schwefel HGL.
    2021. Thermal noise in electro-optic devices at cryogenic temperatures. Quantum
    Science and Technology. 6(4), 045005.
  mla: Mobassem, Sonia, et al. “Thermal Noise in Electro-Optic Devices at Cryogenic
    Temperatures.” <i>Quantum Science and Technology</i>, vol. 6, no. 4, 045005, IOP
    Publishing, 2021, doi:<a href="https://doi.org/10.1088/2058-9565/ac0f36">10.1088/2058-9565/ac0f36</a>.
  short: S. Mobassem, N.J. Lambert, A.R. Rueda Sanchez, J.M. Fink, G. Leuchs, H.G.L.
    Schwefel, Quantum Science and Technology 6 (2021).
date_created: 2021-08-08T22:01:25Z
date_published: 2021-07-15T00:00:00Z
date_updated: 2023-10-17T12:54:54Z
day: '15'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1088/2058-9565/ac0f36
external_id:
  arxiv:
  - '2008.08764'
  isi:
  - '000673081500001'
file:
- access_level: open_access
  checksum: b15c2c228487a75002c3b52d56f23d5c
  content_type: application/pdf
  creator: cchlebak
  date_created: 2021-08-09T12:23:13Z
  date_updated: 2021-08-09T12:23:13Z
  file_id: '9836'
  file_name: 2021_QuantumScienceTechnology_Mobassem.pdf
  file_size: 2366118
  relation: main_file
file_date_updated: 2021-08-09T12:23:13Z
has_accepted_license: '1'
intvolume: '         6'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Quantum Science and Technology
publication_identifier:
  eissn:
  - 2058-9565
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermal noise in electro-optic devices at cryogenic temperatures
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2021'
...
---
_id: '9920'
abstract:
- lang: eng
  text: 'This work is concerned with two fascinating circuit quantum electrodynamics
    components, the Josephson junction and the geometric superinductor, and the interesting
    experiments that can be done by combining the two. The Josephson junction has
    revolutionized the field of superconducting circuits as a non-linear dissipation-less
    circuit element and is used in almost all superconducting qubit implementations
    since the 90s. On the other hand, the superinductor is a relatively new circuit
    element introduced as a key component of the fluxonium qubit in 2009. This is
    an inductor with characteristic impedance larger than the resistance quantum and
    self-resonance frequency in the GHz regime. The combination of these two elements
    can occur in two fundamental ways: in parallel and in series. When connected in
    parallel the two create the fluxonium qubit, a loop with large inductance and
    a rich energy spectrum reliant on quantum tunneling. On the other hand placing
    the two elements in series aids with the measurement of the IV curve of a single
    Josephson junction in a high impedance environment. In this limit theory predicts
    that the junction will behave as its dual element: the phase-slip junction. While
    the Josephson junction acts as a non-linear inductor the phase-slip junction has
    the behavior of a non-linear capacitance and can be used to measure new Josephson
    junction phenomena, namely Coulomb blockade of Cooper pairs and phase-locked Bloch
    oscillations. The latter experiment allows for a direct link between frequency
    and current which is an elusive connection in quantum metrology. This work introduces
    the geometric superinductor, a superconducting circuit element where the high
    inductance is due to the geometry rather than the material properties of the superconductor,
    realized from a highly miniaturized superconducting planar coil. These structures
    will be described and characterized as resonators and qubit inductors and progress
    towards the measurement of phase-locked Bloch oscillations will be presented.'
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Matilda
  full_name: Peruzzo, Matilda
  id: 3F920B30-F248-11E8-B48F-1D18A9856A87
  last_name: Peruzzo
  orcid: 0000-0002-3415-4628
citation:
  ama: Peruzzo M. Geometric superinductors and their applications in circuit quantum
    electrodynamics. 2021. doi:<a href="https://doi.org/10.15479/at:ista:9920">10.15479/at:ista:9920</a>
  apa: Peruzzo, M. (2021). <i>Geometric superinductors and their applications in circuit
    quantum electrodynamics</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:9920">https://doi.org/10.15479/at:ista:9920</a>
  chicago: Peruzzo, Matilda. “Geometric Superinductors and Their Applications in Circuit
    Quantum Electrodynamics.” Institute of Science and Technology Austria, 2021. <a
    href="https://doi.org/10.15479/at:ista:9920">https://doi.org/10.15479/at:ista:9920</a>.
  ieee: M. Peruzzo, “Geometric superinductors and their applications in circuit quantum
    electrodynamics,” Institute of Science and Technology Austria, 2021.
  ista: Peruzzo M. 2021. Geometric superinductors and their applications in circuit
    quantum electrodynamics. Institute of Science and Technology Austria.
  mla: Peruzzo, Matilda. <i>Geometric Superinductors and Their Applications in Circuit
    Quantum Electrodynamics</i>. Institute of Science and Technology Austria, 2021,
    doi:<a href="https://doi.org/10.15479/at:ista:9920">10.15479/at:ista:9920</a>.
  short: M. Peruzzo, Geometric Superinductors and Their Applications in Circuit Quantum
    Electrodynamics, Institute of Science and Technology Austria, 2021.
date_created: 2021-08-16T09:44:09Z
date_published: 2021-08-19T00:00:00Z
date_updated: 2024-09-10T12:23:56Z
day: '19'
ddc:
- '539'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoFi
doi: 10.15479/at:ista:9920
file:
- access_level: closed
  checksum: 3cd1986efde5121d7581f6fcf9090da8
  content_type: application/x-zip-compressed
  creator: mperuzzo
  date_created: 2021-08-16T09:33:21Z
  date_updated: 2021-09-06T08:39:47Z
  file_id: '9924'
  file_name: GeometricSuperinductorsForCQED.zip
  file_size: 151387283
  relation: source_file
- access_level: open_access
  checksum: 50928c621cdf0775d7a5906b9dc8602c
  content_type: application/pdf
  creator: mperuzzo
  date_created: 2021-08-18T14:20:06Z
  date_updated: 2021-09-06T08:39:47Z
  file_id: '9939'
  file_name: GeometricSuperinductorsAndTheirApplicationsIncQED-1b.pdf
  file_size: 17596344
  relation: main_file
- access_level: closed
  checksum: 37f486aa1b622fe44af00d627ec13f6c
  content_type: application/pdf
  creator: mperuzzo
  date_created: 2021-08-18T14:20:09Z
  date_updated: 2021-09-06T08:39:47Z
  description: Extra copy of the thesis as PDF/A-2b
  file_id: '9940'
  file_name: GeometricSuperinductorsAndTheirApplicationsIncQED-2b.pdf
  file_size: 17592425
  relation: other
file_date_updated: 2021-09-06T08:39:47Z
has_accepted_license: '1'
keyword:
- quantum computing
- superinductor
- quantum metrology
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: '149'
publication_identifier:
  isbn:
  - 978-3-99078-013-8
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '9928'
    relation: part_of_dissertation
    status: public
  - id: '8755'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
title: Geometric superinductors and their applications in circuit quantum electrodynamics
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2021'
...
---
_id: '9928'
abstract:
- lang: eng
  text: There are two elementary superconducting qubit types that derive directly
    from the quantum harmonic oscillator. In one, the inductor is replaced by a nonlinear
    Josephson junction to realize the widely used charge qubits with a compact phase
    variable and a discrete charge wave function. In the other, the junction is added
    in parallel, which gives rise to an extended phase variable, continuous wave functions,
    and a rich energy-level structure due to the loop topology. While the corresponding
    rf superconducting quantum interference device Hamiltonian was introduced as a
    quadratic quasi-one-dimensional potential approximation to describe the fluxonium
    qubit implemented with long Josephson-junction arrays, in this work we implement
    it directly using a linear superinductor formed by a single uninterrupted aluminum
    wire. We present a large variety of qubits, all stemming from the same circuit
    but with drastically different characteristic energy scales. This includes flux
    and fluxonium qubits but also the recently introduced quasicharge qubit with strongly
    enhanced zero-point phase fluctuations and a heavily suppressed flux dispersion.
    The use of a geometric inductor results in high reproducibility of the inductive
    energy as guaranteed by top-down lithography—a key ingredient for intrinsically
    protected superconducting qubits.
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
acknowledgement: We thank W. Hughes for analytic and numerical modeling during the
  early stages of this work, J. Koch for discussions and support with the scqubits
  package, R. Sett, P. Zielinski, and L. Drmic for software development, and G. Katsaros
  for equipment support, as well as the MIBA workshop and the Institute of Science
  and Technology Austria nanofabrication facility. We thank I. Pop, S. Deleglise,
  and E. Flurin for discussions. This work was supported by a NOMIS Foundation research
  grant, the Austrian Science Fund (FWF) through BeyondC (F7105), and IST Austria.
  M.P. is the recipient of a Pöttinger scholarship at IST Austria. E.R. is the recipient
  of a DOC fellowship of the Austrian Academy of Sciences at IST Austria.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Matilda
  full_name: Peruzzo, Matilda
  id: 3F920B30-F248-11E8-B48F-1D18A9856A87
  last_name: Peruzzo
  orcid: 0000-0002-3415-4628
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Gregory
  full_name: Szep, Gregory
  last_name: Szep
- first_name: Andrea
  full_name: Trioni, Andrea
  id: 42F71B44-F248-11E8-B48F-1D18A9856A87
  last_name: Trioni
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Peruzzo M, Hassani F, Szep G, et al. Geometric superinductance qubits: Controlling
    phase delocalization across a single Josephson junction. <i>PRX Quantum</i>. 2021;2(4):040341.
    doi:<a href="https://doi.org/10.1103/PRXQuantum.2.040341">10.1103/PRXQuantum.2.040341</a>'
  apa: 'Peruzzo, M., Hassani, F., Szep, G., Trioni, A., Redchenko, E., Zemlicka, M.,
    &#38; Fink, J. M. (2021). Geometric superinductance qubits: Controlling phase
    delocalization across a single Josephson junction. <i>PRX Quantum</i>. American
    Physical Society. <a href="https://doi.org/10.1103/PRXQuantum.2.040341">https://doi.org/10.1103/PRXQuantum.2.040341</a>'
  chicago: 'Peruzzo, Matilda, Farid Hassani, Gregory Szep, Andrea Trioni, Elena Redchenko,
    Martin Zemlicka, and Johannes M Fink. “Geometric Superinductance Qubits: Controlling
    Phase Delocalization across a Single Josephson Junction.” <i>PRX Quantum</i>.
    American Physical Society, 2021. <a href="https://doi.org/10.1103/PRXQuantum.2.040341">https://doi.org/10.1103/PRXQuantum.2.040341</a>.'
  ieee: 'M. Peruzzo <i>et al.</i>, “Geometric superinductance qubits: Controlling
    phase delocalization across a single Josephson junction,” <i>PRX Quantum</i>,
    vol. 2, no. 4. American Physical Society, p. 040341, 2021.'
  ista: 'Peruzzo M, Hassani F, Szep G, Trioni A, Redchenko E, Zemlicka M, Fink JM.
    2021. Geometric superinductance qubits: Controlling phase delocalization across
    a single Josephson junction. PRX Quantum. 2(4), 040341.'
  mla: 'Peruzzo, Matilda, et al. “Geometric Superinductance Qubits: Controlling Phase
    Delocalization across a Single Josephson Junction.” <i>PRX Quantum</i>, vol. 2,
    no. 4, American Physical Society, 2021, p. 040341, doi:<a href="https://doi.org/10.1103/PRXQuantum.2.040341">10.1103/PRXQuantum.2.040341</a>.'
  short: M. Peruzzo, F. Hassani, G. Szep, A. Trioni, E. Redchenko, M. Zemlicka, J.M.
    Fink, PRX Quantum 2 (2021) 040341.
date_created: 2021-08-17T08:14:18Z
date_published: 2021-11-24T00:00:00Z
date_updated: 2023-09-07T13:31:22Z
day: '24'
ddc:
- '530'
department:
- _id: JoFi
- _id: NanoFab
- _id: M-Shop
doi: 10.1103/PRXQuantum.2.040341
ec_funded: 1
external_id:
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  isi:
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intvolume: '         2'
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issue: '4'
keyword:
- quantum physics
- mesoscale and nanoscale physics
language:
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month: '11'
oa: 1
oa_version: Published Version
page: '040341'
project:
- _id: 26927A52-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: F07105
  name: Integrating superconducting quantum circuits
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: 2622978C-B435-11E9-9278-68D0E5697425
  name: Hybrid Semiconductor - Superconductor Quantum Devices
publication: PRX Quantum
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publication_status: published
publisher: American Physical Society
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title: 'Geometric superinductance qubits: Controlling phase delocalization across
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---
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abstract:
- lang: eng
  text: This datasets comprises all data shown in plots of the submitted article "Converting
    microwave and telecom photons with a silicon photonic nanomechanical interface".
    Additional raw data are available from the corresponding author on reasonable
    request.
article_processing_charge: No
author:
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
  orcid: 0000-0003-1397-7876
- first_name: Matthias
  full_name: Wulf, Matthias
  id: 45598606-F248-11E8-B48F-1D18A9856A87
  last_name: Wulf
  orcid: 0000-0001-6613-1378
- first_name: Shabir
  full_name: Barzanjeh, Shabir
  id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
  last_name: Barzanjeh
  orcid: 0000-0003-0415-1423
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: William J
  full_name: Hease, William J
  id: 29705398-F248-11E8-B48F-1D18A9856A87
  last_name: Hease
  orcid: 0000-0001-9868-2166
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Arnold GM, Wulf M, Barzanjeh S, et al. Converting microwave and telecom photons
    with a silicon photonic nanomechanical interface. 2020. doi:<a href="https://doi.org/10.5281/ZENODO.3961561">10.5281/ZENODO.3961561</a>
  apa: Arnold, G. M., Wulf, M., Barzanjeh, S., Redchenko, E., Rueda Sanchez, A. R.,
    Hease, W. J., … Fink, J. M. (2020). Converting microwave and telecom photons with
    a silicon photonic nanomechanical interface. Zenodo. <a href="https://doi.org/10.5281/ZENODO.3961561">https://doi.org/10.5281/ZENODO.3961561</a>
  chicago: Arnold, Georg M, Matthias Wulf, Shabir Barzanjeh, Elena Redchenko, Alfredo
    R Rueda Sanchez, William J Hease, Farid Hassani, and Johannes M Fink. “Converting
    Microwave and Telecom Photons with a Silicon Photonic Nanomechanical Interface.”
    Zenodo, 2020. <a href="https://doi.org/10.5281/ZENODO.3961561">https://doi.org/10.5281/ZENODO.3961561</a>.
  ieee: G. M. Arnold <i>et al.</i>, “Converting microwave and telecom photons with
    a silicon photonic nanomechanical interface.” Zenodo, 2020.
  ista: Arnold GM, Wulf M, Barzanjeh S, Redchenko E, Rueda Sanchez AR, Hease WJ, Hassani
    F, Fink JM. 2020. Converting microwave and telecom photons with a silicon photonic
    nanomechanical interface, Zenodo, <a href="https://doi.org/10.5281/ZENODO.3961561">10.5281/ZENODO.3961561</a>.
  mla: Arnold, Georg M., et al. <i>Converting Microwave and Telecom Photons with a
    Silicon Photonic Nanomechanical Interface</i>. Zenodo, 2020, doi:<a href="https://doi.org/10.5281/ZENODO.3961561">10.5281/ZENODO.3961561</a>.
  short: G.M. Arnold, M. Wulf, S. Barzanjeh, E. Redchenko, A.R. Rueda Sanchez, W.J.
    Hease, F. Hassani, J.M. Fink, (2020).
date_created: 2023-05-23T13:37:41Z
date_published: 2020-07-27T00:00:00Z
date_updated: 2024-09-10T12:23:51Z
day: '27'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.5281/ZENODO.3961561
main_file_link:
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  url: https://doi.org/10.5281/zenodo.3961562
month: '07'
oa: 1
oa_version: Published Version
publisher: Zenodo
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title: Converting microwave and telecom photons with a silicon photonic nanomechanical
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...
---
_id: '13070'
abstract:
- lang: eng
  text: This dataset comprises all data shown in the figures of the submitted article
    "Surpassing the resistance quantum with a geometric superinductor". Additional
    raw data are available from the corresponding author on reasonable request.
article_processing_charge: No
author:
- first_name: Matilda
  full_name: Peruzzo, Matilda
  id: 3F920B30-F248-11E8-B48F-1D18A9856A87
  last_name: Peruzzo
  orcid: 0000-0002-3415-4628
- first_name: Andrea
  full_name: Trioni, Andrea
  id: 42F71B44-F248-11E8-B48F-1D18A9856A87
  last_name: Trioni
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. Surpassing the resistance
    quantum with a geometric superinductor. 2020. doi:<a href="https://doi.org/10.5281/ZENODO.4052882">10.5281/ZENODO.4052882</a>
  apa: Peruzzo, M., Trioni, A., Hassani, F., Zemlicka, M., &#38; Fink, J. M. (2020).
    Surpassing the resistance quantum with a geometric superinductor. Zenodo. <a href="https://doi.org/10.5281/ZENODO.4052882">https://doi.org/10.5281/ZENODO.4052882</a>
  chicago: Peruzzo, Matilda, Andrea Trioni, Farid Hassani, Martin Zemlicka, and Johannes
    M Fink. “Surpassing the Resistance Quantum with a Geometric Superinductor.” Zenodo,
    2020. <a href="https://doi.org/10.5281/ZENODO.4052882">https://doi.org/10.5281/ZENODO.4052882</a>.
  ieee: M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, and J. M. Fink, “Surpassing
    the resistance quantum with a geometric superinductor.” Zenodo, 2020.
  ista: Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. 2020. Surpassing the
    resistance quantum with a geometric superinductor, Zenodo, <a href="https://doi.org/10.5281/ZENODO.4052882">10.5281/ZENODO.4052882</a>.
  mla: Peruzzo, Matilda, et al. <i>Surpassing the Resistance Quantum with a Geometric
    Superinductor</i>. Zenodo, 2020, doi:<a href="https://doi.org/10.5281/ZENODO.4052882">10.5281/ZENODO.4052882</a>.
  short: M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, J.M. Fink, (2020).
date_created: 2023-05-23T16:42:30Z
date_published: 2020-09-27T00:00:00Z
date_updated: 2024-09-10T12:23:56Z
day: '27'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.5281/ZENODO.4052882
main_file_link:
- open_access: '1'
  url: https://doi.org/10.5281/zenodo.4052883
month: '09'
oa: 1
oa_version: Published Version
publisher: Zenodo
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title: Surpassing the resistance quantum with a geometric superinductor
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  short: CC BY (4.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '13071'
abstract:
- lang: eng
  text: This dataset comprises all data shown in the plots of the main part of the
    submitted article "Bidirectional Electro-Optic Wavelength Conversion in the Quantum
    Ground State". Additional raw data are available from the corresponding author
    on reasonable request.
article_processing_charge: No
author:
- first_name: William J
  full_name: Hease, William J
  id: 29705398-F248-11E8-B48F-1D18A9856A87
  last_name: Hease
  orcid: 0000-0001-9868-2166
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: Rishabh
  full_name: Sahu, Rishabh
  id: 47D26E34-F248-11E8-B48F-1D18A9856A87
  last_name: Sahu
  orcid: 0000-0001-6264-2162
- first_name: Matthias
  full_name: Wulf, Matthias
  id: 45598606-F248-11E8-B48F-1D18A9856A87
  last_name: Wulf
  orcid: 0000-0001-6613-1378
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
  orcid: 0000-0003-1397-7876
- first_name: Harald
  full_name: Schwefel, Harald
  last_name: Schwefel
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Hease WJ, Rueda Sanchez AR, Sahu R, et al. Bidirectional electro-optic wavelength
    conversion in the quantum ground state. 2020. doi:<a href="https://doi.org/10.5281/ZENODO.4266025">10.5281/ZENODO.4266025</a>
  apa: Hease, W. J., Rueda Sanchez, A. R., Sahu, R., Wulf, M., Arnold, G. M., Schwefel,
    H., &#38; Fink, J. M. (2020). Bidirectional electro-optic wavelength conversion
    in the quantum ground state. Zenodo. <a href="https://doi.org/10.5281/ZENODO.4266025">https://doi.org/10.5281/ZENODO.4266025</a>
  chicago: Hease, William J, Alfredo R Rueda Sanchez, Rishabh Sahu, Matthias Wulf,
    Georg M Arnold, Harald Schwefel, and Johannes M Fink. “Bidirectional Electro-Optic
    Wavelength Conversion in the Quantum Ground State.” Zenodo, 2020. <a href="https://doi.org/10.5281/ZENODO.4266025">https://doi.org/10.5281/ZENODO.4266025</a>.
  ieee: W. J. Hease <i>et al.</i>, “Bidirectional electro-optic wavelength conversion
    in the quantum ground state.” Zenodo, 2020.
  ista: Hease WJ, Rueda Sanchez AR, Sahu R, Wulf M, Arnold GM, Schwefel H, Fink JM.
    2020. Bidirectional electro-optic wavelength conversion in the quantum ground
    state, Zenodo, <a href="https://doi.org/10.5281/ZENODO.4266025">10.5281/ZENODO.4266025</a>.
  mla: Hease, William J., et al. <i>Bidirectional Electro-Optic Wavelength Conversion
    in the Quantum Ground State</i>. Zenodo, 2020, doi:<a href="https://doi.org/10.5281/ZENODO.4266025">10.5281/ZENODO.4266025</a>.
  short: W.J. Hease, A.R. Rueda Sanchez, R. Sahu, M. Wulf, G.M. Arnold, H. Schwefel,
    J.M. Fink, (2020).
date_created: 2023-05-23T16:44:11Z
date_published: 2020-11-10T00:00:00Z
date_updated: 2024-09-10T12:23:54Z
day: '10'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.5281/ZENODO.4266025
main_file_link:
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  url: https://doi.org/10.5281/zenodo.4266026
month: '11'
oa: 1
oa_version: Published Version
publisher: Zenodo
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title: Bidirectional electro-optic wavelength conversion in the quantum ground state
tmp:
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  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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  short: CC BY (4.0)
type: research_data_reference
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year: '2020'
...
---
_id: '8529'
abstract:
- lang: eng
  text: Practical quantum networks require low-loss and noise-resilient optical interconnects
    as well as non-Gaussian resources for entanglement distillation and distributed
    quantum computation. The latter could be provided by superconducting circuits
    but existing solutions to interface the microwave and optical domains lack either
    scalability or efficiency, and in most cases the conversion noise is not known.
    In this work we utilize the unique opportunities of silicon photonics, cavity
    optomechanics and superconducting circuits to demonstrate a fully integrated,
    coherent transducer interfacing the microwave X and the telecom S bands with a
    total (internal) bidirectional transduction efficiency of 1.2% (135%) at millikelvin
    temperatures. The coupling relies solely on the radiation pressure interaction
    mediated by the femtometer-scale motion of two silicon nanobeams reaching a <jats:italic>V</jats:italic><jats:sub><jats:italic>π</jats:italic></jats:sub>
    as low as 16 μV for sub-nanowatt pump powers. Without the associated optomechanical
    gain, we achieve a total (internal) pure conversion efficiency of up to 0.019%
    (1.6%), relevant for future noise-free operation on this qubit-compatible platform.
acknowledged_ssus:
- _id: NanoFab
acknowledgement: We thank Yuan Chen for performing supplementary FEM simulations and
  Andrew Higginbotham, Ralf Riedinger, Sungkun Hong, and Lorenzo Magrini for valuable
  discussions. This work was supported by IST Austria, the IST nanofabrication facility
  (NFF), the European Union’s Horizon 2020 research and innovation program under grant
  agreement no. 732894 (FET Proactive HOT) and the European Research Council under
  grant agreement no. 758053 (ERC StG QUNNECT). G.A. is the recipient of a DOC fellowship
  of the Austrian Academy of Sciences at IST Austria. W.H. is the recipient of an
  ISTplus postdoctoral fellowship with funding from the European Union’s Horizon 2020
  research and innovation program under the Marie Sklodowska-Curie grant agreement
  no. 754411. J.M.F. acknowledges support from the Austrian Science Fund (FWF) through
  BeyondC (F71), a NOMIS foundation research grant, and the EU’s Horizon 2020 research
  and innovation program under grant agreement no. 862644 (FET Open QUARTET).
article_number: '4460'
article_processing_charge: No
article_type: original
author:
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
  orcid: 0000-0003-1397-7876
- first_name: Matthias
  full_name: Wulf, Matthias
  id: 45598606-F248-11E8-B48F-1D18A9856A87
  last_name: Wulf
  orcid: 0000-0001-6613-1378
- first_name: Shabir
  full_name: Barzanjeh, Shabir
  id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
  last_name: Barzanjeh
  orcid: 0000-0003-0415-1423
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: William J
  full_name: Hease, William J
  id: 29705398-F248-11E8-B48F-1D18A9856A87
  last_name: Hease
  orcid: 0000-0001-9868-2166
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Arnold GM, Wulf M, Barzanjeh S, et al. Converting microwave and telecom photons
    with a silicon photonic nanomechanical interface. <i>Nature Communications</i>.
    2020;11. doi:<a href="https://doi.org/10.1038/s41467-020-18269-z">10.1038/s41467-020-18269-z</a>
  apa: Arnold, G. M., Wulf, M., Barzanjeh, S., Redchenko, E., Rueda Sanchez, A. R.,
    Hease, W. J., … Fink, J. M. (2020). Converting microwave and telecom photons with
    a silicon photonic nanomechanical interface. <i>Nature Communications</i>. Springer
    Nature. <a href="https://doi.org/10.1038/s41467-020-18269-z">https://doi.org/10.1038/s41467-020-18269-z</a>
  chicago: Arnold, Georg M, Matthias Wulf, Shabir Barzanjeh, Elena Redchenko, Alfredo
    R Rueda Sanchez, William J Hease, Farid Hassani, and Johannes M Fink. “Converting
    Microwave and Telecom Photons with a Silicon Photonic Nanomechanical Interface.”
    <i>Nature Communications</i>. Springer Nature, 2020. <a href="https://doi.org/10.1038/s41467-020-18269-z">https://doi.org/10.1038/s41467-020-18269-z</a>.
  ieee: G. M. Arnold <i>et al.</i>, “Converting microwave and telecom photons with
    a silicon photonic nanomechanical interface,” <i>Nature Communications</i>, vol.
    11. Springer Nature, 2020.
  ista: Arnold GM, Wulf M, Barzanjeh S, Redchenko E, Rueda Sanchez AR, Hease WJ, Hassani
    F, Fink JM. 2020. Converting microwave and telecom photons with a silicon photonic
    nanomechanical interface. Nature Communications. 11, 4460.
  mla: Arnold, Georg M., et al. “Converting Microwave and Telecom Photons with a Silicon
    Photonic Nanomechanical Interface.” <i>Nature Communications</i>, vol. 11, 4460,
    Springer Nature, 2020, doi:<a href="https://doi.org/10.1038/s41467-020-18269-z">10.1038/s41467-020-18269-z</a>.
  short: G.M. Arnold, M. Wulf, S. Barzanjeh, E. Redchenko, A.R. Rueda Sanchez, W.J.
    Hease, F. Hassani, J.M. Fink, Nature Communications 11 (2020).
date_created: 2020-09-18T10:56:20Z
date_published: 2020-09-08T00:00:00Z
date_updated: 2024-08-07T07:11:51Z
day: '08'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1038/s41467-020-18269-z
ec_funded: 1
external_id:
  isi:
  - '000577280200001'
file:
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  checksum: 88f92544889eb18bb38e25629a422a86
  content_type: application/pdf
  creator: dernst
  date_created: 2020-09-18T13:02:37Z
  date_updated: 2020-09-18T13:02:37Z
  file_id: '8530'
  file_name: 2020_NatureComm_Arnold.pdf
  file_size: 1002818
  relation: main_file
  success: 1
file_date_updated: 2020-09-18T13:02:37Z
has_accepted_license: '1'
intvolume: '        11'
isi: 1
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 257EB838-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '732894'
  name: Hybrid Optomechanical Technologies
- _id: 26336814-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '758053'
  name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 237CBA6C-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862644'
  name: Quantum readout techniques and technologies
- _id: 2671EB66-B435-11E9-9278-68D0E5697425
  name: Coherent on-chip conversion of superconducting qubit signals from microwaves
    to optical frequencies
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: erratum
    url: https://doi.org/10.1038/s41467-020-18912-9
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/how-to-transport-microwave-quantum-information-via-optical-fiber/
  record:
  - id: '13056'
    relation: research_data
    status: public
status: public
title: Converting microwave and telecom photons with a silicon photonic nanomechanical
  interface
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2020'
...
---
_id: '8755'
abstract:
- lang: eng
  text: 'The superconducting circuit community has recently discovered the promising
    potential of superinductors. These circuit elements have a characteristic impedance
    exceeding the resistance quantum RQ ≈ 6.45 kΩ which leads to a suppression of
    ground state charge fluctuations. Applications include the realization of hardware
    protected qubits for fault tolerant quantum computing, improved coupling to small
    dipole moment objects and defining a new quantum metrology standard for the ampere.
    In this work we refute the widespread notion that superinductors can only be implemented
    based on kinetic inductance, i.e. using disordered superconductors or Josephson
    junction arrays. We present modeling, fabrication and characterization of 104
    planar aluminum coil resonators with a characteristic impedance up to 30.9 kΩ
    at 5.6 GHz and a capacitance down to ≤ 1 fF, with lowloss and a power handling
    reaching 108 intra-cavity photons. Geometric superinductors are free of uncontrolled
    tunneling events and offer high reproducibility, linearity and the ability to
    couple magnetically - properties that significantly broaden the scope of future
    quantum circuits. '
acknowledged_ssus:
- _id: NanoFab
acknowledgement: "The authors acknowledge the support from I. Prieto and the IST Nanofabrication
  Facility. This work was supported by IST Austria and a NOMIS foundation research
  grant and the Austrian Science Fund (FWF) through BeyondC (F71). MP is the recipient
  of a P¨ottinger scholarship at IST Austria. JMF acknowledges support from the European
  Union’s Horizon 2020 research and innovation programs under grant agreement No 732894
  (FET Proactive HOT), 862644 (FET Open QUARTET), and the European Research Council
  under grant agreement\r\nnumber 758053 (ERC StG QUNNECT). "
article_number: '044055'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Matilda
  full_name: Peruzzo, Matilda
  id: 3F920B30-F248-11E8-B48F-1D18A9856A87
  last_name: Peruzzo
  orcid: 0000-0002-3415-4628
- first_name: Andrea
  full_name: Trioni, Andrea
  id: 42F71B44-F248-11E8-B48F-1D18A9856A87
  last_name: Trioni
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. Surpassing the resistance
    quantum with a geometric superinductor. <i>Physical Review Applied</i>. 2020;14(4).
    doi:<a href="https://doi.org/10.1103/PhysRevApplied.14.044055">10.1103/PhysRevApplied.14.044055</a>
  apa: Peruzzo, M., Trioni, A., Hassani, F., Zemlicka, M., &#38; Fink, J. M. (2020).
    Surpassing the resistance quantum with a geometric superinductor. <i>Physical
    Review Applied</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevApplied.14.044055">https://doi.org/10.1103/PhysRevApplied.14.044055</a>
  chicago: Peruzzo, Matilda, Andrea Trioni, Farid Hassani, Martin Zemlicka, and Johannes
    M Fink. “Surpassing the Resistance Quantum with a Geometric Superinductor.” <i>Physical
    Review Applied</i>. American Physical Society, 2020. <a href="https://doi.org/10.1103/PhysRevApplied.14.044055">https://doi.org/10.1103/PhysRevApplied.14.044055</a>.
  ieee: M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, and J. M. Fink, “Surpassing
    the resistance quantum with a geometric superinductor,” <i>Physical Review Applied</i>,
    vol. 14, no. 4. American Physical Society, 2020.
  ista: Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. 2020. Surpassing the
    resistance quantum with a geometric superinductor. Physical Review Applied. 14(4),
    044055.
  mla: Peruzzo, Matilda, et al. “Surpassing the Resistance Quantum with a Geometric
    Superinductor.” <i>Physical Review Applied</i>, vol. 14, no. 4, 044055, American
    Physical Society, 2020, doi:<a href="https://doi.org/10.1103/PhysRevApplied.14.044055">10.1103/PhysRevApplied.14.044055</a>.
  short: M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, J.M. Fink, Physical Review
    Applied 14 (2020).
date_created: 2020-11-15T23:01:17Z
date_published: 2020-10-29T00:00:00Z
date_updated: 2024-08-07T07:11:55Z
day: '29'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1103/PhysRevApplied.14.044055
ec_funded: 1
external_id:
  arxiv:
  - '2007.01644'
  isi:
  - '000582797300003'
file:
- access_level: open_access
  checksum: 2a634abe75251ae7628cd54c8a4ce2e8
  content_type: application/pdf
  creator: dernst
  date_created: 2021-03-29T11:43:20Z
  date_updated: 2021-03-29T11:43:20Z
  file_id: '9300'
  file_name: 2020_PhysReviewApplied_Peruzzo.pdf
  file_size: 2607823
  relation: main_file
  success: 1
file_date_updated: 2021-03-29T11:43:20Z
has_accepted_license: '1'
intvolume: '        14'
isi: 1
issue: '4'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 26927A52-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: F07105
  name: Integrating superconducting quantum circuits
- _id: 257EB838-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '732894'
  name: Hybrid Optomechanical Technologies
- _id: 237CBA6C-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862644'
  name: Quantum readout techniques and technologies
- _id: 26336814-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '758053'
  name: A Fiber Optic Transceiver for Superconducting Qubits
publication: Physical Review Applied
publication_identifier:
  eissn:
  - '23317019'
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
  record:
  - id: '13070'
    relation: research_data
    status: public
  - id: '9920'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Surpassing the resistance quantum with a geometric superinductor
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 14
year: '2020'
...
---
_id: '8944'
abstract:
- lang: eng
  text: "Superconductor insulator transition in transverse magnetic field is studied
    in the highly disordered MoC film with the product of the Fermi momentum and the
    mean free path kF*l close to unity. Surprisingly, the Zeeman paramagnetic effects
    dominate over orbital coupling on both sides of the transition. In superconducting
    state it is evidenced by a high upper critical magnetic field \U0001D435\U0001D4502,
    by its square root dependence on temperature, as well as by the Zeeman splitting
    of the quasiparticle density of states (DOS) measured by scanning tunneling microscopy.
    At \U0001D435\U0001D4502 a logarithmic anomaly in DOS is observed. This anomaly
    is further enhanced in increasing magnetic field, which is explained by the Zeeman
    splitting of the Altshuler-Aronov DOS driving\r\nthe system into a more insulating
    or resistive state. Spin dependent Altshuler-Aronov correction is also needed
    to explain the transport behavior above \U0001D435\U0001D4502."
acknowledgement: 'We gratefully acknowledge helpful conversations with B.L. Altshuler
  and R. Hlubina. The work was supported by the projects APVV-18-0358, VEGA 2/0058/20,
  VEGA 1/0743/19 the European Microkelvin Platform, the COST action CA16218 (Nanocohybri)
  and by U.S. Steel Košice. '
article_number: '180508'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
- first_name: M.
  full_name: Kopčík, M.
  last_name: Kopčík
- first_name: P.
  full_name: Szabó, P.
  last_name: Szabó
- first_name: T.
  full_name: Samuely, T.
  last_name: Samuely
- first_name: J.
  full_name: Kačmarčík, J.
  last_name: Kačmarčík
- first_name: P.
  full_name: Neilinger, P.
  last_name: Neilinger
- first_name: M.
  full_name: Grajcar, M.
  last_name: Grajcar
- first_name: P.
  full_name: Samuely, P.
  last_name: Samuely
citation:
  ama: 'Zemlicka M, Kopčík M, Szabó P, et al. Zeeman-driven superconductor-insulator
    transition in strongly disordered MoC films: Scanning tunneling microscopy and
    transport studies in a transverse magnetic field. <i>Physical Review B</i>. 2020;102(18).
    doi:<a href="https://doi.org/10.1103/PhysRevB.102.180508">10.1103/PhysRevB.102.180508</a>'
  apa: 'Zemlicka, M., Kopčík, M., Szabó, P., Samuely, T., Kačmarčík, J., Neilinger,
    P., … Samuely, P. (2020). Zeeman-driven superconductor-insulator transition in
    strongly disordered MoC films: Scanning tunneling microscopy and transport studies
    in a transverse magnetic field. <i>Physical Review B</i>. American Physical Society.
    <a href="https://doi.org/10.1103/PhysRevB.102.180508">https://doi.org/10.1103/PhysRevB.102.180508</a>'
  chicago: 'Zemlicka, Martin, M. Kopčík, P. Szabó, T. Samuely, J. Kačmarčík, P. Neilinger,
    M. Grajcar, and P. Samuely. “Zeeman-Driven Superconductor-Insulator Transition
    in Strongly Disordered MoC Films: Scanning Tunneling Microscopy and Transport
    Studies in a Transverse Magnetic Field.” <i>Physical Review B</i>. American Physical
    Society, 2020. <a href="https://doi.org/10.1103/PhysRevB.102.180508">https://doi.org/10.1103/PhysRevB.102.180508</a>.'
  ieee: 'M. Zemlicka <i>et al.</i>, “Zeeman-driven superconductor-insulator transition
    in strongly disordered MoC films: Scanning tunneling microscopy and transport
    studies in a transverse magnetic field,” <i>Physical Review B</i>, vol. 102, no.
    18. American Physical Society, 2020.'
  ista: 'Zemlicka M, Kopčík M, Szabó P, Samuely T, Kačmarčík J, Neilinger P, Grajcar
    M, Samuely P. 2020. Zeeman-driven superconductor-insulator transition in strongly
    disordered MoC films: Scanning tunneling microscopy and transport studies in a
    transverse magnetic field. Physical Review B. 102(18), 180508.'
  mla: 'Zemlicka, Martin, et al. “Zeeman-Driven Superconductor-Insulator Transition
    in Strongly Disordered MoC Films: Scanning Tunneling Microscopy and Transport
    Studies in a Transverse Magnetic Field.” <i>Physical Review B</i>, vol. 102, no.
    18, 180508, American Physical Society, 2020, doi:<a href="https://doi.org/10.1103/PhysRevB.102.180508">10.1103/PhysRevB.102.180508</a>.'
  short: M. Zemlicka, M. Kopčík, P. Szabó, T. Samuely, J. Kačmarčík, P. Neilinger,
    M. Grajcar, P. Samuely, Physical Review B 102 (2020).
date_created: 2020-12-13T23:01:21Z
date_published: 2020-11-01T00:00:00Z
date_updated: 2023-08-24T10:53:36Z
day: '01'
department:
- _id: JoFi
doi: 10.1103/PhysRevB.102.180508
external_id:
  arxiv:
  - '2011.04329'
  isi:
  - '000591509900003'
intvolume: '       102'
isi: 1
issue: '18'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2011.04329
month: '11'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
  eissn:
  - '24699969'
  issn:
  - '24699950'
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Zeeman-driven superconductor-insulator transition in strongly disordered MoC
  films: Scanning tunneling microscopy and transport studies in a transverse magnetic
  field'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 102
year: '2020'
...
---
_id: '9001'
abstract:
- lang: eng
  text: Quantum illumination is a sensing technique that employs entangled signal-idler
    beams to improve the detection efficiency of low-reflectivity objects in environments
    with large thermal noise. The advantage over classical strategies is evident at
    low signal brightness, a feature which could make the protocol an ideal prototype
    for non-invasive scanning or low-power short-range radar. Here we experimentally
    investigate the concept of quantum illumination at microwave frequencies, by generating
    entangled fields using a Josephson parametric converter which are then amplified
    to illuminate a room-temperature object at a distance of 1 meter. Starting from
    experimental data, we simulate the case of perfect idler photon number detection,
    which results in a quantum advantage compared to the relative classical benchmark.
    Our results highlight the opportunities and challenges on the way towards a first
    room-temperature application of microwave quantum circuits.
acknowledgement: "This work was supported by the Institute of Science and Technology
  Austria (IST Austria), the European Research Council under grant agreement number
  758053 (ERC StG QUNNECT) and the EU’s Horizon 2020 research and innovation programme
  under grant agreement number 862644 (FET Open QUARTET). S.B. acknowledges support
  from the Marie Skłodowska Curie\r\nfellowship number 707438 (MSC-IF SUPEREOM), DV
  acknowledge support from EU’s Horizon 2020 research and innovation programme under
  grant agreement number 732894 (FET Proactive HOT) and the Project QuaSeRT funded
  by the QuantERA ERANET Cofund in Quantum Technologies, and J.M.F from the Austrian
  Science Fund (FWF) through BeyondC (F71), a NOMIS foundation research grant, and
  the EU’s Horizon 2020 research and\r\ninnovation programme under grant agreement
  number 732894 (FET Proactive\r\nHOT)."
article_number: '9266397'
article_processing_charge: No
arxiv: 1
author:
- first_name: Shabir
  full_name: Barzanjeh, Shabir
  id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
  last_name: Barzanjeh
  orcid: 0000-0003-0415-1423
- first_name: Stefano
  full_name: Pirandola, Stefano
  last_name: Pirandola
- first_name: David
  full_name: Vitali, David
  last_name: Vitali
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Barzanjeh S, Pirandola S, Vitali D, Fink JM. Microwave quantum illumination
    with a digital phase-conjugated receiver. In: <i>IEEE National Radar Conference
    - Proceedings</i>. Vol 2020. IEEE; 2020. doi:<a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">10.1109/RadarConf2043947.2020.9266397</a>'
  apa: 'Barzanjeh, S., Pirandola, S., Vitali, D., &#38; Fink, J. M. (2020). Microwave
    quantum illumination with a digital phase-conjugated receiver. In <i>IEEE National
    Radar Conference - Proceedings</i> (Vol. 2020). Florence, Italy: IEEE. <a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">https://doi.org/10.1109/RadarConf2043947.2020.9266397</a>'
  chicago: Barzanjeh, Shabir, Stefano Pirandola, David Vitali, and Johannes M Fink.
    “Microwave Quantum Illumination with a Digital Phase-Conjugated Receiver.” In
    <i>IEEE National Radar Conference - Proceedings</i>, Vol. 2020. IEEE, 2020. <a
    href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">https://doi.org/10.1109/RadarConf2043947.2020.9266397</a>.
  ieee: S. Barzanjeh, S. Pirandola, D. Vitali, and J. M. Fink, “Microwave quantum
    illumination with a digital phase-conjugated receiver,” in <i>IEEE National Radar
    Conference - Proceedings</i>, Florence, Italy, 2020, vol. 2020, no. 9.
  ista: 'Barzanjeh S, Pirandola S, Vitali D, Fink JM. 2020. Microwave quantum illumination
    with a digital phase-conjugated receiver. IEEE National Radar Conference - Proceedings.
    RadarConf: National Conference on Radar vol. 2020, 9266397.'
  mla: Barzanjeh, Shabir, et al. “Microwave Quantum Illumination with a Digital Phase-Conjugated
    Receiver.” <i>IEEE National Radar Conference - Proceedings</i>, vol. 2020, no.
    9, 9266397, IEEE, 2020, doi:<a href="https://doi.org/10.1109/RadarConf2043947.2020.9266397">10.1109/RadarConf2043947.2020.9266397</a>.
  short: S. Barzanjeh, S. Pirandola, D. Vitali, J.M. Fink, in:, IEEE National Radar
    Conference - Proceedings, IEEE, 2020.
conference:
  end_date: 2020-09-25
  location: Florence, Italy
  name: 'RadarConf: National Conference on Radar'
  start_date: 2020-09-21
date_created: 2021-01-10T23:01:17Z
date_published: 2020-09-21T00:00:00Z
date_updated: 2024-09-10T12:23:52Z
day: '21'
department:
- _id: JoFi
doi: 10.1109/RadarConf2043947.2020.9266397
ec_funded: 1
external_id:
  arxiv:
  - '1908.03058'
  isi:
  - '000612224900089'
intvolume: '      2020'
isi: 1
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1908.03058
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 26336814-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '758053'
  name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 237CBA6C-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862644'
  name: Quantum readout techniques and technologies
- _id: 258047B6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '707438'
  name: 'Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination
    with cavity Optomechanics SUPEREOM'
- _id: 257EB838-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '732894'
  name: Hybrid Optomechanical Technologies
publication: IEEE National Radar Conference - Proceedings
publication_identifier:
  isbn:
  - '9781728189420'
  issn:
  - 1097-5659
publication_status: published
publisher: IEEE
quality_controlled: '1'
related_material:
  record:
  - id: '7910'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Microwave quantum illumination with a digital phase-conjugated receiver
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 2020
year: '2020'
...
---
_id: '9114'
abstract:
- lang: eng
  text: "Microwave photonics lends the advantages of fiber optics to electronic sensing
    and communication systems. In contrast to nonlinear optics, electro-optic devices
    so far require classical modulation fields whose variance is dominated by electronic
    or thermal noise rather than quantum fluctuations. Here we demonstrate bidirectional
    single-sideband conversion of X band microwave to C band telecom light with a
    microwave mode occupancy as low as 0.025 ± 0.005 and an added output noise of
    less than or equal to 0.074 photons. This is facilitated by radiative cooling
    and a triply resonant ultra-low-loss transducer operating at millikelvin temperatures.
    The high bandwidth of 10.7 MHz and total (internal) photon conversion\r\nefficiency
    of 0.03% (0.67%) combined with the extremely slow heating rate of 1.1 added output
    noise photons per second for the highest available pump power of 1.48 mW puts
    near-unity efficiency pulsed quantum transduction within reach. Together with
    the non-Gaussian resources of superconducting qubits this might provide the practical
    foundation to extend the range and scope of current quantum networks in analogy
    to electrical repeaters in classical fiber optic communication."
acknowledged_ssus:
- _id: M-Shop
acknowledgement: "The authors acknowledge the support of T. Menner, A. Arslani, and
  T. Asenov from the Miba machine shop for machining the microwave cavity, and thank
  S. Barzanjeh, F. Sedlmeir, and C. Marquardt for fruitful discussions. This work
  is supported by IST Austria and the European Research Council under Grant No. 758053
  (ERC StG QUNNECT). W.H. is the recipient of an ISTplus postdoctoral fellowship with
  funding from the European Union’s Horizon 2020 research and innovation program under
  the Marie Skłodowska-Curie Grant No. 754411.\r\nG.A. is the recipient of a DOC fellowship
  of the Austrian Academy of Sciences at IST Austria. J.M.F. acknowledges support
  from the Austrian Science Fund (FWF) through BeyondC (F71) and the European Union’s
  Horizon 2020 research and innovation program under Grant No. 899354 (FET Open SuperQuLAN).
  H.G.L.S. acknowledges support from the Aotearoa/New Zealand’s MBIE Endeavour Smart
  Ideas Grant No UOOX1805."
article_number: '020315'
article_processing_charge: No
article_type: original
author:
- first_name: William J
  full_name: Hease, William J
  id: 29705398-F248-11E8-B48F-1D18A9856A87
  last_name: Hease
  orcid: 0000-0001-9868-2166
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: Rishabh
  full_name: Sahu, Rishabh
  id: 47D26E34-F248-11E8-B48F-1D18A9856A87
  last_name: Sahu
  orcid: 0000-0001-6264-2162
- first_name: Matthias
  full_name: Wulf, Matthias
  id: 45598606-F248-11E8-B48F-1D18A9856A87
  last_name: Wulf
  orcid: 0000-0001-6613-1378
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
  orcid: 0000-0003-1397-7876
- first_name: Harald G.L.
  full_name: Schwefel, Harald G.L.
  last_name: Schwefel
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Hease WJ, Rueda Sanchez AR, Sahu R, et al. Bidirectional electro-optic wavelength
    conversion in the quantum ground state. <i>PRX Quantum</i>. 2020;1(2). doi:<a
    href="https://doi.org/10.1103/prxquantum.1.020315">10.1103/prxquantum.1.020315</a>
  apa: Hease, W. J., Rueda Sanchez, A. R., Sahu, R., Wulf, M., Arnold, G. M., Schwefel,
    H. G. L., &#38; Fink, J. M. (2020). Bidirectional electro-optic wavelength conversion
    in the quantum ground state. <i>PRX Quantum</i>. American Physical Society. <a
    href="https://doi.org/10.1103/prxquantum.1.020315">https://doi.org/10.1103/prxquantum.1.020315</a>
  chicago: Hease, William J, Alfredo R Rueda Sanchez, Rishabh Sahu, Matthias Wulf,
    Georg M Arnold, Harald G.L. Schwefel, and Johannes M Fink. “Bidirectional Electro-Optic
    Wavelength Conversion in the Quantum Ground State.” <i>PRX Quantum</i>. American
    Physical Society, 2020. <a href="https://doi.org/10.1103/prxquantum.1.020315">https://doi.org/10.1103/prxquantum.1.020315</a>.
  ieee: W. J. Hease <i>et al.</i>, “Bidirectional electro-optic wavelength conversion
    in the quantum ground state,” <i>PRX Quantum</i>, vol. 1, no. 2. American Physical
    Society, 2020.
  ista: Hease WJ, Rueda Sanchez AR, Sahu R, Wulf M, Arnold GM, Schwefel HGL, Fink
    JM. 2020. Bidirectional electro-optic wavelength conversion in the quantum ground
    state. PRX Quantum. 1(2), 020315.
  mla: Hease, William J., et al. “Bidirectional Electro-Optic Wavelength Conversion
    in the Quantum Ground State.” <i>PRX Quantum</i>, vol. 1, no. 2, 020315, American
    Physical Society, 2020, doi:<a href="https://doi.org/10.1103/prxquantum.1.020315">10.1103/prxquantum.1.020315</a>.
  short: W.J. Hease, A.R. Rueda Sanchez, R. Sahu, M. Wulf, G.M. Arnold, H.G.L. Schwefel,
    J.M. Fink, PRX Quantum 1 (2020).
date_created: 2021-02-12T10:41:28Z
date_published: 2020-11-23T00:00:00Z
date_updated: 2024-10-29T09:11:05Z
day: '23'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1103/prxquantum.1.020315
ec_funded: 1
external_id:
  isi:
  - '000674680100001'
file:
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issue: '2'
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month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 26336814-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '758053'
  name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 260C2330-B435-11E9-9278-68D0E5697425
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  name: Quantum Local Area Networks with Superconducting Qubits
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  call_identifier: FWF
  grant_number: F07105
  name: Integrating superconducting quantum circuits
- _id: 2671EB66-B435-11E9-9278-68D0E5697425
  name: Coherent on-chip conversion of superconducting qubit signals from microwaves
    to optical frequencies
publication: PRX Quantum
publication_identifier:
  issn:
  - 2691-3399
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
  link:
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    relation: press_release
    url: https://ist.ac.at/en/news/how-to-transport-microwave-quantum-information-via-optical-fiber/
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status: public
title: Bidirectional electro-optic wavelength conversion in the quantum ground state
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...
---
_id: '9194'
abstract:
- lang: eng
  text: Quantum transduction, the process of converting quantum signals from one form
    of energy to another, is an important area of quantum science and technology.
    The present perspective article reviews quantum transduction between microwave
    and optical photons, an area that has recently seen a lot of activity and progress
    because of its relevance for connecting superconducting quantum processors over
    long distances, among other applications. Our review covers the leading approaches
    to achieving such transduction, with an emphasis on those based on atomic ensembles,
    opto-electro-mechanics, and electro-optics. We briefly discuss relevant metrics
    from the point of view of different applications, as well as challenges for the
    future.
acknowledgement: "During the writing of this article we became aware of another review
  of quantum transduction with somewhat different emphasis [99].\r\nWe would like
  to thank the participants of the transduction workshop at Caltech in September 2018
  for helpful and stimulating discussions. We particularly thank John Bartholomew,
  Andrei Faraon, Johannes Fink, Jeff Holzgrafe, Linbo Shao, Marko Lončar, Daniel Oblak,
  and Oskar Painter.\r\nN L and N S acknowledge support from the Alliance for Quantum
  Technologies' (AQT) Intelligent Quantum Networks and Technologies (INQNET) research
  program and by DOE/HEP QuantISED program grant, QCCFP (Quantum Communication Channels
  for Fundamental Physics), award number DE-SC0019219. NS further acknowledges support
  by the Natural Sciences and Engineering Research Council of Canada (NSERC). SB acknowledges
  support from the Marie Skłodowska Curie fellowship number 707 438 (MSC-IF SUPEREOM).
  JPC acknowledges support from the Caltech PMA prize postdoctoral fellowship. MS
  acknowledges support from the ARL-CDQI and the National Science Foundation. CS acknowledges
  NSERC, Quantum Alberta, and the Alberta Major Innovation Fund."
article_number: '020501'
article_processing_charge: No
article_type: review
author:
- first_name: Nikolai
  full_name: Lauk, Nikolai
  last_name: Lauk
- first_name: Neil
  full_name: Sinclair, Neil
  last_name: Sinclair
- first_name: Shabir
  full_name: Barzanjeh, Shabir
  id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
  last_name: Barzanjeh
  orcid: 0000-0003-0415-1423
- first_name: Jacob P
  full_name: Covey, Jacob P
  last_name: Covey
- first_name: Mark
  full_name: Saffman, Mark
  last_name: Saffman
- first_name: Maria
  full_name: Spiropulu, Maria
  last_name: Spiropulu
- first_name: Christoph
  full_name: Simon, Christoph
  last_name: Simon
citation:
  ama: Lauk N, Sinclair N, Barzanjeh S, et al. Perspectives on quantum transduction.
    <i>Quantum Science and Technology</i>. 2020;5(2). doi:<a href="https://doi.org/10.1088/2058-9565/ab788a">10.1088/2058-9565/ab788a</a>
  apa: Lauk, N., Sinclair, N., Barzanjeh, S., Covey, J. P., Saffman, M., Spiropulu,
    M., &#38; Simon, C. (2020). Perspectives on quantum transduction. <i>Quantum Science
    and Technology</i>. IOP Publishing. <a href="https://doi.org/10.1088/2058-9565/ab788a">https://doi.org/10.1088/2058-9565/ab788a</a>
  chicago: Lauk, Nikolai, Neil Sinclair, Shabir Barzanjeh, Jacob P Covey, Mark Saffman,
    Maria Spiropulu, and Christoph Simon. “Perspectives on Quantum Transduction.”
    <i>Quantum Science and Technology</i>. IOP Publishing, 2020. <a href="https://doi.org/10.1088/2058-9565/ab788a">https://doi.org/10.1088/2058-9565/ab788a</a>.
  ieee: N. Lauk <i>et al.</i>, “Perspectives on quantum transduction,” <i>Quantum
    Science and Technology</i>, vol. 5, no. 2. IOP Publishing, 2020.
  ista: Lauk N, Sinclair N, Barzanjeh S, Covey JP, Saffman M, Spiropulu M, Simon C.
    2020. Perspectives on quantum transduction. Quantum Science and Technology. 5(2),
    020501.
  mla: Lauk, Nikolai, et al. “Perspectives on Quantum Transduction.” <i>Quantum Science
    and Technology</i>, vol. 5, no. 2, 020501, IOP Publishing, 2020, doi:<a href="https://doi.org/10.1088/2058-9565/ab788a">10.1088/2058-9565/ab788a</a>.
  short: N. Lauk, N. Sinclair, S. Barzanjeh, J.P. Covey, M. Saffman, M. Spiropulu,
    C. Simon, Quantum Science and Technology 5 (2020).
date_created: 2021-02-25T08:32:29Z
date_published: 2020-03-01T00:00:00Z
date_updated: 2023-08-24T11:17:48Z
day: '01'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1088/2058-9565/ab788a
ec_funded: 1
external_id:
  isi:
  - '000521449500001'
file:
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  checksum: a8562c42124a66b86836fe2489eb5f4f
  content_type: application/pdf
  creator: dernst
  date_created: 2021-03-02T09:47:13Z
  date_updated: 2021-03-02T09:47:13Z
  file_id: '9215'
  file_name: 2020_QuantumScience_Lauk.pdf
  file_size: 974399
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has_accepted_license: '1'
intvolume: '         5'
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issue: '2'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 258047B6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '707438'
  name: 'Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination
    with cavity Optomechanics SUPEREOM'
publication: Quantum Science and Technology
publication_identifier:
  issn:
  - 2058-9565
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Perspectives on quantum transduction
tmp:
  image: /images/cc_by.png
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  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 5
year: '2020'
...
---
_id: '9195'
abstract:
- lang: eng
  text: Quantum information technology based on solid state qubits has created much
    interest in converting quantum states from the microwave to the optical domain.
    Optical photons, unlike microwave photons, can be transmitted by fiber, making
    them suitable for long distance quantum communication. Moreover, the optical domain
    offers access to a large set of very well‐developed quantum optical tools, such
    as highly efficient single‐photon detectors and long‐lived quantum memories. For
    a high fidelity microwave to optical transducer, efficient conversion at single
    photon level and low added noise is needed. Currently, the most promising approaches
    to build such systems are based on second‐order nonlinear phenomena such as optomechanical
    and electro‐optic interactions. Alternative approaches, although not yet as efficient,
    include magneto‐optical coupling and schemes based on isolated quantum systems
    like atoms, ions, or quantum dots. Herein, the necessary theoretical foundations
    for the most important microwave‐to‐optical conversion experiments are provided,
    their implementations are described, and the current limitations and future prospects
    are discussed.
acknowledgement: The authors thank Amita Deb for useful comments on this manuscript.
  The authors acknowledge support from the MBIE of New Zealand Endeavour Smart Ideas
  fund. The reference numbers in Figure 8 were corrected in April 2020, after online
  publication.
article_number: '1900077'
article_processing_charge: No
article_type: original
author:
- first_name: Nicholas J.
  full_name: Lambert, Nicholas J.
  last_name: Lambert
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: Florian
  full_name: Sedlmeir, Florian
  last_name: Sedlmeir
- first_name: Harald G. L.
  full_name: Schwefel, Harald G. L.
  last_name: Schwefel
citation:
  ama: Lambert NJ, Rueda Sanchez AR, Sedlmeir F, Schwefel HGL. Coherent conversion
    between microwave and optical photons - An overview of physical implementations.
    <i>Advanced Quantum Technologies</i>. 2020;3(1). doi:<a href="https://doi.org/10.1002/qute.201900077">10.1002/qute.201900077</a>
  apa: Lambert, N. J., Rueda Sanchez, A. R., Sedlmeir, F., &#38; Schwefel, H. G. L.
    (2020). Coherent conversion between microwave and optical photons - An overview
    of physical implementations. <i>Advanced Quantum Technologies</i>. Wiley. <a href="https://doi.org/10.1002/qute.201900077">https://doi.org/10.1002/qute.201900077</a>
  chicago: Lambert, Nicholas J., Alfredo R Rueda Sanchez, Florian Sedlmeir, and Harald
    G. L. Schwefel. “Coherent Conversion between Microwave and Optical Photons - An
    Overview of Physical Implementations.” <i>Advanced Quantum Technologies</i>. Wiley,
    2020. <a href="https://doi.org/10.1002/qute.201900077">https://doi.org/10.1002/qute.201900077</a>.
  ieee: N. J. Lambert, A. R. Rueda Sanchez, F. Sedlmeir, and H. G. L. Schwefel, “Coherent
    conversion between microwave and optical photons - An overview of physical implementations,”
    <i>Advanced Quantum Technologies</i>, vol. 3, no. 1. Wiley, 2020.
  ista: Lambert NJ, Rueda Sanchez AR, Sedlmeir F, Schwefel HGL. 2020. Coherent conversion
    between microwave and optical photons - An overview of physical implementations.
    Advanced Quantum Technologies. 3(1), 1900077.
  mla: Lambert, Nicholas J., et al. “Coherent Conversion between Microwave and Optical
    Photons - An Overview of Physical Implementations.” <i>Advanced Quantum Technologies</i>,
    vol. 3, no. 1, 1900077, Wiley, 2020, doi:<a href="https://doi.org/10.1002/qute.201900077">10.1002/qute.201900077</a>.
  short: N.J. Lambert, A.R. Rueda Sanchez, F. Sedlmeir, H.G.L. Schwefel, Advanced
    Quantum Technologies 3 (2020).
date_created: 2021-02-25T08:52:36Z
date_published: 2020-01-01T00:00:00Z
date_updated: 2023-08-24T13:53:02Z
day: '01'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1002/qute.201900077
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  - '000548088300001'
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license: https://creativecommons.org/licenses/by-nc/4.0/
month: '01'
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publication: Advanced Quantum Technologies
publication_identifier:
  issn:
  - 2511-9044
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
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    relation: poster
    url: https://doi.org/10.1002/qute.202070011
status: public
title: Coherent conversion between microwave and optical photons - An overview of
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type: journal_article
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...
