---
_id: '14802'
abstract:
- lang: eng
text: Frequency-stable lasers form the back bone of precision measurements in science
and technology. Such lasers typically attain their stability through frequency
locking to reference cavities. State-of-the-art locking performances to date had
been achieved using frequency modulation based methods, complemented with active
drift cancellation systems. We demonstrate an all passive, modulation-free laser-cavity
locking technique (squash locking) that utilizes changes in spatial beam ellipticity
for error signal generation, and a coherent polarization post-selection for noise
resilience. By comparing two identically built proof-of-principle systems, we
show a frequency locking instability of 5×10−7 relative to
the cavity linewidth at 10 s averaging. The results surpass the demonstrated performances
of methods engineered over the last five decades, potentially enabling an advancement
in the precision control of lasers, while creating avenues for bridging the performance
gaps between industrial grade lasers with scientific ones due to the afforded
simplicity and scalability.
acknowledgement: We thank Rishabh Sahu and Sebastian Wald for technical contributions
to the experiment. Funding by Institute of Science and Technology Austria.
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Artem
full_name: Zhutov, Artem
id: 0f02ed6a-b514-11ee-b891-8379c5f19cb7
last_name: Zhutov
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
date_created: 2024-01-15T10:25:38Z
date_published: 2024-01-20T00:00:00Z
date_updated: 2024-08-19T09:52:20Z
day: '20'
ddc:
- '530'
department:
- _id: OnHo
doi: 10.1364/optica.507451
external_id:
arxiv:
- '2202.13212'
file:
- access_level: open_access
checksum: eb99ca7d0fe73e22f121875175546ed7
content_type: application/pdf
creator: dernst
date_created: 2024-01-17T08:53:16Z
date_updated: 2024-01-17T08:53:16Z
file_id: '14824'
file_name: 2023_Optica_Diorico.pdf
file_size: 4558986
relation: main_file
success: 1
file_date_updated: 2024-01-17T08:53:16Z
has_accepted_license: '1'
intvolume: ' 11'
issue: '1'
keyword:
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '01'
oa: 1
oa_version: Published Version
page: 26-31
publication: Optica
publication_identifier:
issn:
- 2334-2536
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: 'Laser-cavity locking utilizing beam ellipticity: accessing the 10−7
instability scale relative to cavity linewidth'
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: 11
year: '2024'
...
---
_id: '14980'
abstract:
- lang: eng
text: Precision sensing and manipulation of milligram-scale mechanical oscillators
has attracted growing interest in the fields of table-top explorations of gravity
and tests of quantum mechanics at macroscopic scales. Torsional oscillators present
an opportunity in this regard due to their remarked isolation from environmental
noise. For torsional motion, an effective employment of optical cavities to enhance
optomechanical interactions—as already established for linear oscillators—so far
faced certain challenges. Here, we propose a concept for sensing and manipulating
torsional motion, where exclusively the torsional rotations of a pendulum are
mapped onto the path length of a single two-mirror optical cavity. The concept
inherently alleviates many limitations of previous approaches. A proof-of-principle
experiment is conducted with a rigidly controlled pendulum to explore the sensing
aspects of the concept and to identify practical limitations in a potential state-of-the
art setup. Based on this study, we anticipate development of precision torque
sensors utilizing torsional pendulums that can support sensitivities below 10−19Nm/√Hz,
while the motion of the pendulums are dominated by quantum radiation pressure
noise at sub-microwatts of incoming laser power. These developments will provide
horizons for experiments at the interface of quantum mechanics and gravity.
acknowledgement: "We thank Pere Rosselló for his contributions to the initial modeling
of the presented sensing technique. This work was supported by Institute of Science
and Technology Austria, and\r\nthe European Research Council under Grant No. 101087907
(ERC CoG QuHAMP)."
article_number: '013141'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Sofya
full_name: Agafonova, Sofya
id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
last_name: Agafonova
orcid: 0000-0003-0582-2946
- first_name: Umang
full_name: Mishra, Umang
id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
last_name: Mishra
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Agafonova S, Mishra U, Diorico FR, Hosten O. Zigzag optical cavity for sensing
and controlling torsional motion. Physical Review Research. 2024;6(1).
doi:10.1103/physrevresearch.6.013141
apa: Agafonova, S., Mishra, U., Diorico, F. R., & Hosten, O. (2024). Zigzag
optical cavity for sensing and controlling torsional motion. Physical Review
Research. American Physical Society. https://doi.org/10.1103/physrevresearch.6.013141
chicago: Agafonova, Sofya, Umang Mishra, Fritz R Diorico, and Onur Hosten. “Zigzag
Optical Cavity for Sensing and Controlling Torsional Motion.” Physical Review
Research. American Physical Society, 2024. https://doi.org/10.1103/physrevresearch.6.013141.
ieee: S. Agafonova, U. Mishra, F. R. Diorico, and O. Hosten, “Zigzag optical cavity
for sensing and controlling torsional motion,” Physical Review Research,
vol. 6, no. 1. American Physical Society, 2024.
ista: Agafonova S, Mishra U, Diorico FR, Hosten O. 2024. Zigzag optical cavity for
sensing and controlling torsional motion. Physical Review Research. 6(1), 013141.
mla: Agafonova, Sofya, et al. “Zigzag Optical Cavity for Sensing and Controlling
Torsional Motion.” Physical Review Research, vol. 6, no. 1, 013141, American
Physical Society, 2024, doi:10.1103/physrevresearch.6.013141.
short: S. Agafonova, U. Mishra, F.R. Diorico, O. Hosten, Physical Review Research
6 (2024).
date_created: 2024-02-12T11:42:18Z
date_published: 2024-02-05T00:00:00Z
date_updated: 2024-02-12T11:49:06Z
day: '05'
ddc:
- '530'
department:
- _id: OnHo
doi: 10.1103/physrevresearch.6.013141
external_id:
arxiv:
- '2306.12804'
file:
- access_level: open_access
checksum: 3a39ebffb24c1cc1dd0b547a726dc52d
content_type: application/pdf
creator: dernst
date_created: 2024-02-12T11:46:50Z
date_updated: 2024-02-12T11:46:50Z
file_id: '14981'
file_name: 2024_PhysicalRevResearch_Agafonova.pdf
file_size: 1437167
relation: main_file
success: 1
file_date_updated: 2024-02-12T11:46:50Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: bdb2a702-d553-11ed-ba76-f12e3e5a3bc6
grant_number: '101087907'
name: 'A quantum hybrid of atoms and milligram-scale pendulums: towards gravitational
quantum mechanics'
publication: Physical Review Research
publication_identifier:
eissn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Zigzag optical cavity for sensing and controlling torsional motion
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: '2024'
...
---
_id: '14749'
abstract:
- lang: eng
text: We unveil a powerful method for the stabilization of laser injection locking
based on sensing variations in the output beam ellipticity of an optically seeded
laser. The effect arises due to an interference between the seeding beam and the
injected laser output. We demonstrate the method for a commercial semiconductor
laser without the need for any internal changes to the readily operational injection
locked laser system that was used. The method can also be used to increase the
mode-hop free tuning range of lasers, and has the potential to fill a void in
the low-noise laser industry.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Umang
full_name: Mishra, Umang
id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
last_name: Mishra
- first_name: Vyacheslav
full_name: Li, Vyacheslav
id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87
last_name: Li
- first_name: Sebastian
full_name: Wald, Sebastian
id: 133F200A-B015-11E9-AD41-0EDAE5697425
last_name: Wald
- first_name: Sofya
full_name: Agafonova, Sofya
id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
last_name: Agafonova
orcid: 0000-0003-0582-2946
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. Monitoring and active
stabilization of laser injection locking using beam ellipticity. Optics Letters.
2023;48(15):3973-3976. doi:10.1364/ol.495553
apa: Mishra, U., Li, V., Wald, S., Agafonova, S., Diorico, F. R., & Hosten,
O. (2023). Monitoring and active stabilization of laser injection locking using
beam ellipticity. Optics Letters. Optica Publishing Group. https://doi.org/10.1364/ol.495553
chicago: Mishra, Umang, Vyacheslav Li, Sebastian Wald, Sofya Agafonova, Fritz R
Diorico, and Onur Hosten. “Monitoring and Active Stabilization of Laser Injection
Locking Using Beam Ellipticity.” Optics Letters. Optica Publishing Group,
2023. https://doi.org/10.1364/ol.495553.
ieee: U. Mishra, V. Li, S. Wald, S. Agafonova, F. R. Diorico, and O. Hosten, “Monitoring
and active stabilization of laser injection locking using beam ellipticity,” Optics
Letters, vol. 48, no. 15. Optica Publishing Group, pp. 3973–3976, 2023.
ista: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. 2023. Monitoring
and active stabilization of laser injection locking using beam ellipticity. Optics
Letters. 48(15), 3973–3976.
mla: Mishra, Umang, et al. “Monitoring and Active Stabilization of Laser Injection
Locking Using Beam Ellipticity.” Optics Letters, vol. 48, no. 15, Optica
Publishing Group, 2023, pp. 3973–76, doi:10.1364/ol.495553.
short: U. Mishra, V. Li, S. Wald, S. Agafonova, F.R. Diorico, O. Hosten, Optics
Letters 48 (2023) 3973–3976.
date_created: 2024-01-08T13:01:46Z
date_published: 2023-07-21T00:00:00Z
date_updated: 2024-01-09T08:09:32Z
day: '21'
department:
- _id: OnHo
doi: 10.1364/ol.495553
external_id:
arxiv:
- '2212.01266'
intvolume: ' 48'
issue: '15'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
month: '07'
oa_version: Preprint
page: 3973-3976
publication: Optics Letters
publication_identifier:
eissn:
- 1539-4794
issn:
- 0146-9592
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Monitoring and active stabilization of laser injection locking using beam ellipticity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 48
year: '2023'
...
---
_id: '14759'
abstract:
- lang: eng
text: "Proper operation of electro-optic I/Q modulators relies on precise adjustment
and control of the relative phase biases between the modulator’s internal interferometer
arms. We present an all-analog phase bias locking scheme where error signals are
obtained from the beat between the optical carrier and optical tones generated
by an auxiliary 2 MHz \U0001D445\U0001D439 tone to lock the phases of all three
involved interferometers for operation up to 10 GHz. With the developed method,
we demonstrate an I/Q modulator in carrier-suppressed single-sideband mode, where
the suppressed carrier and sideband are locked at optical power levels <−27dB\r\n
relative to the transmitted sideband. We describe a simple analytical model for
calculating the error signals and detail the implementation of the electronic
circuitry for the implementation of the method."
acknowledgement: We thank Jakob Vorlaufer for technical contributions and Vyacheslav
Li and Sofia Agafonova for comments on the manuscript.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sebastian
full_name: Wald, Sebastian
id: 133F200A-B015-11E9-AD41-0EDAE5697425
last_name: Wald
orcid: 0000-0002-5869-1604
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Wald S, Diorico FR, Hosten O. Analog stabilization of an electro-optic I/Q
modulator with an auxiliary modulation tone. Applied Optics. 2023;62(1):1-7.
doi:10.1364/ao.474118
apa: Wald, S., Diorico, F. R., & Hosten, O. (2023). Analog stabilization of
an electro-optic I/Q modulator with an auxiliary modulation tone. Applied Optics.
Optica Publishing Group. https://doi.org/10.1364/ao.474118
chicago: Wald, Sebastian, Fritz R Diorico, and Onur Hosten. “Analog Stabilization
of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone.” Applied
Optics. Optica Publishing Group, 2023. https://doi.org/10.1364/ao.474118.
ieee: S. Wald, F. R. Diorico, and O. Hosten, “Analog stabilization of an electro-optic
I/Q modulator with an auxiliary modulation tone,” Applied Optics, vol.
62, no. 1. Optica Publishing Group, pp. 1–7, 2023.
ista: Wald S, Diorico FR, Hosten O. 2023. Analog stabilization of an electro-optic
I/Q modulator with an auxiliary modulation tone. Applied Optics. 62(1), 1–7.
mla: Wald, Sebastian, et al. “Analog Stabilization of an Electro-Optic I/Q Modulator
with an Auxiliary Modulation Tone.” Applied Optics, vol. 62, no. 1, Optica
Publishing Group, 2023, pp. 1–7, doi:10.1364/ao.474118.
short: S. Wald, F.R. Diorico, O. Hosten, Applied Optics 62 (2023) 1–7.
date_created: 2024-01-08T13:19:14Z
date_published: 2023-01-01T00:00:00Z
date_updated: 2024-01-09T10:10:34Z
day: '01'
department:
- _id: OnHo
doi: 10.1364/ao.474118
external_id:
arxiv:
- '2208.11591'
intvolume: ' 62'
issue: '1'
keyword:
- Atomic and Molecular Physics
- and Optics
- Engineering (miscellaneous)
- Electrical and Electronic Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2208.11591
month: '01'
oa: 1
oa_version: Preprint
page: 1-7
publication: Applied Optics
publication_identifier:
eissn:
- 2155-3165
issn:
- 1559-128X
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation
tone
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2023'
...
---
_id: '13233'
abstract:
- lang: eng
text: We study the impact of finite-range physics on the zero-range-model analysis
of three-body recombination in ultracold atoms. We find that temperature dependence
of the zero-range parameters can vary from one set of measurements to another
as it may be driven by the distribution of error bars in the experiment, and not
by the underlying three-body physics. To study finite-temperature effects in three-body
recombination beyond the zero-range physics, we introduce and examine a finite-range
model based upon a hyperspherical formalism. The systematic error discussed in
this Letter may provide a significant contribution to the error bars of measured
three-body parameters.
acknowledgement: We thank Jan Arlt, Hans-Werner Hammer, and Karsten Riisager for useful
discussions. M.L. acknowledges support by the European Research Council (ERC) Starting
Grant No. 801770 (ANGULON).
article_number: L061304
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: Sofya
full_name: Agafonova, Sofya
id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
last_name: Agafonova
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Agafonova S, Lemeshko M, Volosniev A. Finite-range bias in fitting three-body
loss to the zero-range model. Physical Review A. 2023;107(6). doi:10.1103/PhysRevA.107.L061304
apa: Agafonova, S., Lemeshko, M., & Volosniev, A. (2023). Finite-range bias
in fitting three-body loss to the zero-range model. Physical Review A.
American Physical Society. https://doi.org/10.1103/PhysRevA.107.L061304
chicago: Agafonova, Sofya, Mikhail Lemeshko, and Artem Volosniev. “Finite-Range
Bias in Fitting Three-Body Loss to the Zero-Range Model.” Physical Review A.
American Physical Society, 2023. https://doi.org/10.1103/PhysRevA.107.L061304.
ieee: S. Agafonova, M. Lemeshko, and A. Volosniev, “Finite-range bias in fitting
three-body loss to the zero-range model,” Physical Review A, vol. 107,
no. 6. American Physical Society, 2023.
ista: Agafonova S, Lemeshko M, Volosniev A. 2023. Finite-range bias in fitting three-body
loss to the zero-range model. Physical Review A. 107(6), L061304.
mla: Agafonova, Sofya, et al. “Finite-Range Bias in Fitting Three-Body Loss to the
Zero-Range Model.” Physical Review A, vol. 107, no. 6, L061304, American
Physical Society, 2023, doi:10.1103/PhysRevA.107.L061304.
short: S. Agafonova, M. Lemeshko, A. Volosniev, Physical Review A 107 (2023).
date_created: 2023-07-16T22:01:10Z
date_published: 2023-06-20T00:00:00Z
date_updated: 2023-08-02T06:31:52Z
day: '20'
department:
- _id: MiLe
- _id: OnHo
doi: 10.1103/PhysRevA.107.L061304
ec_funded: 1
external_id:
arxiv:
- '2302.01022'
isi:
- '001019748000005'
intvolume: ' 107'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2302.01022
month: '06'
oa: 1
oa_version: Preprint
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
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: Finite-range bias in fitting three-body loss to the zero-range model
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '13264'
abstract:
- lang: eng
text: "We build a parametric amplifier with a Josephson field-effect transistor
(JoFET) as the active element. The resonant frequency of the device is field-effect
tunable over a range of 2 GHz. The JoFET amplifier has 20 dB of gain, 4 MHz of
instantaneous bandwidth, and a 1-dB compression point of -125.5 dBm when operated
at a fixed resonance frequency.\r\n\r\n"
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
acknowledgement: We thank Shyam Shankar for helpful feedback on the manuscript. We
gratefully acknowledge the support of the ISTA nanofabrication facility, the Miba
Machine Shop, and the eMachine Shop. The NYU team acknowledges support from Army
Research Office Grant No. W911NF2110303.
article_number: '064032'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Duc T
full_name: Phan, Duc T
id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87
last_name: Phan
- first_name: Paul
full_name: Falthansl-Scheinecker, Paul
id: 85b43b21-15b2-11ec-abd3-e2c252cc2285
last_name: Falthansl-Scheinecker
- first_name: Umang
full_name: Mishra, Umang
id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
last_name: Mishra
- first_name: W. M.
full_name: Strickland, W. M.
last_name: Strickland
- first_name: D.
full_name: Langone, D.
last_name: Langone
- first_name: J.
full_name: Shabani, J.
last_name: Shabani
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
citation:
ama: Phan DT, Falthansl-Scheinecker P, Mishra U, et al. Gate-tunable superconductor-semiconductor
parametric amplifier. Physical Review Applied. 2023;19(6). doi:10.1103/PhysRevApplied.19.064032
apa: Phan, D. T., Falthansl-Scheinecker, P., Mishra, U., Strickland, W. M., Langone,
D., Shabani, J., & Higginbotham, A. P. (2023). Gate-tunable superconductor-semiconductor
parametric amplifier. Physical Review Applied. American Physical Society.
https://doi.org/10.1103/PhysRevApplied.19.064032
chicago: Phan, Duc T, Paul Falthansl-Scheinecker, Umang Mishra, W. M. Strickland,
D. Langone, J. Shabani, and Andrew P Higginbotham. “Gate-Tunable Superconductor-Semiconductor
Parametric Amplifier.” Physical Review Applied. American Physical Society,
2023. https://doi.org/10.1103/PhysRevApplied.19.064032.
ieee: D. T. Phan et al., “Gate-tunable superconductor-semiconductor parametric
amplifier,” Physical Review Applied, vol. 19, no. 6. American Physical
Society, 2023.
ista: Phan DT, Falthansl-Scheinecker P, Mishra U, Strickland WM, Langone D, Shabani
J, Higginbotham AP. 2023. Gate-tunable superconductor-semiconductor parametric
amplifier. Physical Review Applied. 19(6), 064032.
mla: Phan, Duc T., et al. “Gate-Tunable Superconductor-Semiconductor Parametric
Amplifier.” Physical Review Applied, vol. 19, no. 6, 064032, American Physical
Society, 2023, doi:10.1103/PhysRevApplied.19.064032.
short: D.T. Phan, P. Falthansl-Scheinecker, U. Mishra, W.M. Strickland, D. Langone,
J. Shabani, A.P. Higginbotham, Physical Review Applied 19 (2023).
date_created: 2023-07-23T22:01:12Z
date_published: 2023-06-09T00:00:00Z
date_updated: 2023-11-30T10:56:03Z
day: '09'
department:
- _id: AnHi
- _id: OnHo
doi: 10.1103/PhysRevApplied.19.064032
external_id:
arxiv:
- '2206.05746'
isi:
- '001012022600004'
intvolume: ' 19'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2206.05746
month: '06'
oa: 1
oa_version: Preprint
publication: Physical Review Applied
publication_identifier:
eissn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
record:
- id: '14547'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Gate-tunable superconductor-semiconductor parametric amplifier
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 19
year: '2023'
...
---
_id: '11438'
abstract:
- lang: eng
text: Lasers with well-controlled relative frequencies are indispensable for many
applications in science and technology. We present a frequency-offset locking
method for lasers based on beat-frequency discrimination utilizing hybrid electronic
LC filters. The method is specifically designed for decoupling the tightness of
the lock from the broadness of its capture range. The presented demonstration
locks two free-running diode lasers at 780 nm with a 5.5-GHz offset. It displays
an offset frequency instability below 55 Hz for time scales in excess of 1000
s and a minimum of 12 Hz at 10-s averaging. The performance is complemented with
a 190-MHz lock-capture range, a tuning range of up to 1 GHz, and a frequency ramp
agility of 200kHz/μs.
acknowledgement: This work was supported by IST Austria. The authors thank Yueheng
Shi for technical contributions.
article_number: '054031'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Vyacheslav
full_name: Li, Vyacheslav
id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87
last_name: Li
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Li V, Diorico FR, Hosten O. Laser frequency-offset locking at 10-Hz-level instability
using hybrid electronic filters. Physical Review Applied. 2022;17(5). doi:10.1103/physrevapplied.17.054031
apa: Li, V., Diorico, F. R., & Hosten, O. (2022). Laser frequency-offset locking
at 10-Hz-level instability using hybrid electronic filters. Physical Review
Applied. American Physical Society. https://doi.org/10.1103/physrevapplied.17.054031
chicago: Li, Vyacheslav, Fritz R Diorico, and Onur Hosten. “Laser Frequency-Offset
Locking at 10-Hz-Level Instability Using Hybrid Electronic Filters.” Physical
Review Applied. American Physical Society, 2022. https://doi.org/10.1103/physrevapplied.17.054031.
ieee: V. Li, F. R. Diorico, and O. Hosten, “Laser frequency-offset locking at 10-Hz-level
instability using hybrid electronic filters,” Physical Review Applied,
vol. 17, no. 5. American Physical Society, 2022.
ista: Li V, Diorico FR, Hosten O. 2022. Laser frequency-offset locking at 10-Hz-level
instability using hybrid electronic filters. Physical Review Applied. 17(5), 054031.
mla: Li, Vyacheslav, et al. “Laser Frequency-Offset Locking at 10-Hz-Level Instability
Using Hybrid Electronic Filters.” Physical Review Applied, vol. 17, no.
5, 054031, American Physical Society, 2022, doi:10.1103/physrevapplied.17.054031.
short: V. Li, F.R. Diorico, O. Hosten, Physical Review Applied 17 (2022).
date_created: 2022-06-07T08:07:59Z
date_published: 2022-05-19T00:00:00Z
date_updated: 2023-08-03T07:18:34Z
day: '19'
department:
- _id: GradSch
- _id: OnHo
doi: 10.1103/physrevapplied.17.054031
external_id:
arxiv:
- '2111.13194'
isi:
- '000880670300001'
intvolume: ' 17'
isi: 1
issue: '5'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2111.13194'
month: '05'
oa: 1
oa_version: Preprint
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic
filters
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 17
year: '2022'
...
---
_id: '10652'
abstract:
- lang: eng
text: Finding a feasible scheme for testing the quantum mechanical nature of the
gravitational interaction has been attracting an increasing level of attention.
Gravity mediated entanglement generation so far appears to be the key ingredient
for a potential experiment. In a recent proposal [D. Carney et al., PRX Quantum
2, 030330 (2021)] combining an atom interferometer with a low-frequency mechanical
oscillator, a coherence revival test is proposed for verifying this entanglement
generation. With measurements performed only on the atoms, this protocol bypasses
the need for correlation measurements. Here, we explore formulations of such a
protocol, and specifically find that in the envisioned regime of operation with
high thermal excitation, semiclassical models, where there is no concept of entanglement,
also give the same experimental signatures. We elucidate in a fully quantum mechanical
calculation that entanglement is not the source of the revivals in the relevant
parameter regime. We argue that, in its current form, the suggested test is only
relevant if the oscillator is nearly in a pure quantum state, and in this regime
the effects are too small to be measurable. We further discuss potential open
ends. The results highlight the importance and subtleties of explicitly considering
how the quantum case differs from the classical expectations when testing for
the quantum mechanical nature of a physical system.
acknowledgement: O.H. is supported by Institute of Science and Technology Austria.
The author thanks Jess Riedel for discussions.
article_number: '013023'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Hosten O. Constraints on probing quantum coherence to infer gravitational entanglement.
Physical Review Research. 2022;4(1). doi:10.1103/PhysRevResearch.4.013023
apa: Hosten, O. (2022). Constraints on probing quantum coherence to infer gravitational
entanglement. Physical Review Research. American Physical Society. https://doi.org/10.1103/PhysRevResearch.4.013023
chicago: Hosten, Onur. “Constraints on Probing Quantum Coherence to Infer Gravitational
Entanglement.” Physical Review Research. American Physical Society, 2022.
https://doi.org/10.1103/PhysRevResearch.4.013023.
ieee: O. Hosten, “Constraints on probing quantum coherence to infer gravitational
entanglement,” Physical Review Research, vol. 4, no. 1. American Physical
Society, 2022.
ista: Hosten O. 2022. Constraints on probing quantum coherence to infer gravitational
entanglement. Physical Review Research. 4(1), 013023.
mla: Hosten, Onur. “Constraints on Probing Quantum Coherence to Infer Gravitational
Entanglement.” Physical Review Research, vol. 4, no. 1, 013023, American
Physical Society, 2022, doi:10.1103/PhysRevResearch.4.013023.
short: O. Hosten, Physical Review Research 4 (2022).
date_created: 2022-01-23T23:01:27Z
date_published: 2022-01-10T00:00:00Z
date_updated: 2022-05-16T11:21:38Z
day: '10'
ddc:
- '530'
department:
- _id: OnHo
doi: 10.1103/PhysRevResearch.4.013023
file:
- access_level: open_access
checksum: 7254d267a0633ca5d63131d345e58686
content_type: application/pdf
creator: cchlebak
date_created: 2022-01-24T11:12:44Z
date_updated: 2022-01-24T11:12:44Z
file_id: '10660'
file_name: 2022_PhysRevResearch_Hosten.pdf
file_size: 236329
relation: main_file
success: 1
file_date_updated: 2022-01-24T11:12:44Z
has_accepted_license: '1'
intvolume: ' 4'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Constraints on probing quantum coherence to infer gravitational entanglement
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: 4
year: '2022'
...
---
_id: '9331'
abstract:
- lang: eng
text: 'Quantum entanglement has been generated and verified in cold-atom experiments
and used to make atom-interferometric measurements below the shot-noise limit.
However, current state-of-the-art cold-atom devices exploit separable (i.e., unentangled)
atomic states. This perspective piece asks the question: can entanglement usefully
improve cold-atom sensors, in the sense that it gives new sensing capabilities
unachievable with current state-of-the-art devices? We briefly review the state-of-the-art
in precision cold-atom sensing, focusing on clocks and inertial sensors, identifying
the potential benefits entanglement could bring to these devices, and the challenges
that need to be overcome to realize these benefits. We survey demonstrated methods
of generating metrologically useful entanglement in cold-atom systems, note their
relative strengths and weaknesses, and assess their prospects for near-to-medium
term quantum-enhanced cold-atom sensing.'
acknowledgement: We acknowledge fruitful discussions with John Close, Chris Freier,
Kyle Hardman, Joseph Hope, and Paul Wigley, and insightful suggestions made by Franck
Pereira dos Santos on behalf of the Atom Interferometry and Inertial Sensors team
at SYRTE. S.S.S. was supported by an Australian Research Council Discovery Early
Career Researcher Award (DECRA), Project No. DE200100495. O.H. was supported by
IST Austria.
article_number: '140501'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Stuart S.
full_name: Szigeti, Stuart S.
last_name: Szigeti
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Simon A.
full_name: Haine, Simon A.
last_name: Haine
citation:
ama: 'Szigeti SS, Hosten O, Haine SA. Improving cold-atom sensors with quantum entanglement:
Prospects and challenges. Applied Physics Letters. 2021;118(14). doi:10.1063/5.0050235'
apa: 'Szigeti, S. S., Hosten, O., & Haine, S. A. (2021). Improving cold-atom
sensors with quantum entanglement: Prospects and challenges. Applied Physics
Letters. AIP Publishing. https://doi.org/10.1063/5.0050235'
chicago: 'Szigeti, Stuart S., Onur Hosten, and Simon A. Haine. “Improving Cold-Atom
Sensors with Quantum Entanglement: Prospects and Challenges.” Applied Physics
Letters. AIP Publishing, 2021. https://doi.org/10.1063/5.0050235.'
ieee: 'S. S. Szigeti, O. Hosten, and S. A. Haine, “Improving cold-atom sensors with
quantum entanglement: Prospects and challenges,” Applied Physics Letters,
vol. 118, no. 14. AIP Publishing, 2021.'
ista: 'Szigeti SS, Hosten O, Haine SA. 2021. Improving cold-atom sensors with quantum
entanglement: Prospects and challenges. Applied Physics Letters. 118(14), 140501.'
mla: 'Szigeti, Stuart S., et al. “Improving Cold-Atom Sensors with Quantum Entanglement:
Prospects and Challenges.” Applied Physics Letters, vol. 118, no. 14, 140501,
AIP Publishing, 2021, doi:10.1063/5.0050235.'
short: S.S. Szigeti, O. Hosten, S.A. Haine, Applied Physics Letters 118 (2021).
date_created: 2021-04-18T22:01:40Z
date_published: 2021-04-07T00:00:00Z
date_updated: 2023-08-07T14:36:42Z
day: '07'
department:
- _id: OnHo
doi: 10.1063/5.0050235
external_id:
arxiv:
- '2010.09168'
isi:
- '000637702100001'
intvolume: ' 118'
isi: 1
issue: '14'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2010.09168
month: '04'
oa: 1
oa_version: Preprint
publication: Applied Physics Letters
publication_identifier:
issn:
- '00036951'
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Improving cold-atom sensors with quantum entanglement: Prospects and challenges'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 118
year: '2021'
...
---
_id: '8285'
abstract:
- lang: eng
text: We demonstrate the utility of optical cavity generated spin-squeezed states
in free space atomic fountain clocks in ensembles of 390 000 87Rb atoms. Fluorescence
imaging, correlated to an initial quantum nondemolition measurement, is used for
population spectroscopy after the atoms are released from a confining lattice.
For a free fall time of 4 milliseconds, we resolve a single-shot phase sensitivity
of 814(61) microradians, which is 5.8(0.6) decibels (dB) below the quantum projection
limit. We observe that this squeezing is preserved as the cloud expands to a roughly
200 μm radius and falls roughly 300 μm in free space. Ramsey spectroscopy with
240 000 atoms at a 3.6 ms Ramsey time results in a single-shot fractional frequency
stability of 8.4(0.2)×10−12, 3.8(0.2) dB below the quantum projection limit. The
sensitivity and stability are limited by the technical noise in the fluorescence
detection protocol and the microwave system, respectively.
acknowledgement: This work is supported by the Office of Naval Research (N00014-16-1-2927-
A00003), Vannevar Bush Faculty Fellowship (N00014-16-1-2812- P00005), Department
of Energy (DE-SC0019174- 0001), and Defense Threat Reduction Agency (HDTRA1-15-1-0017-
P00005).
article_number: '043202'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Benjamin K.
full_name: Malia, Benjamin K.
last_name: Malia
- first_name: Julián
full_name: Martínez-Rincón, Julián
last_name: Martínez-Rincón
- first_name: Yunfan
full_name: Wu, Yunfan
last_name: Wu
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Mark A.
full_name: Kasevich, Mark A.
last_name: Kasevich
citation:
ama: Malia BK, Martínez-Rincón J, Wu Y, Hosten O, Kasevich MA. Free space Ramsey
spectroscopy in rubidium with noise below the quantum projection limit. Physical
Review Letters. 2020;125(4). doi:10.1103/PhysRevLett.125.043202
apa: Malia, B. K., Martínez-Rincón, J., Wu, Y., Hosten, O., & Kasevich, M. A.
(2020). Free space Ramsey spectroscopy in rubidium with noise below the quantum
projection limit. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.125.043202
chicago: Malia, Benjamin K., Julián Martínez-Rincón, Yunfan Wu, Onur Hosten, and
Mark A. Kasevich. “Free Space Ramsey Spectroscopy in Rubidium with Noise below
the Quantum Projection Limit.” Physical Review Letters. American Physical
Society, 2020. https://doi.org/10.1103/PhysRevLett.125.043202.
ieee: B. K. Malia, J. Martínez-Rincón, Y. Wu, O. Hosten, and M. A. Kasevich, “Free
space Ramsey spectroscopy in rubidium with noise below the quantum projection
limit,” Physical Review Letters, vol. 125, no. 4. American Physical Society,
2020.
ista: Malia BK, Martínez-Rincón J, Wu Y, Hosten O, Kasevich MA. 2020. Free space
Ramsey spectroscopy in rubidium with noise below the quantum projection limit.
Physical Review Letters. 125(4), 043202.
mla: Malia, Benjamin K., et al. “Free Space Ramsey Spectroscopy in Rubidium with
Noise below the Quantum Projection Limit.” Physical Review Letters, vol.
125, no. 4, 043202, American Physical Society, 2020, doi:10.1103/PhysRevLett.125.043202.
short: B.K. Malia, J. Martínez-Rincón, Y. Wu, O. Hosten, M.A. Kasevich, Physical
Review Letters 125 (2020).
date_created: 2020-08-24T06:24:04Z
date_published: 2020-07-24T00:00:00Z
date_updated: 2023-10-18T08:38:35Z
day: '24'
department:
- _id: OnHo
doi: 10.1103/PhysRevLett.125.043202
external_id:
arxiv:
- '1912.10218'
isi:
- '000552227400008'
pmid:
- '32794788'
intvolume: ' 125'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1912.10218
month: '07'
oa: 1
oa_version: Preprint
pmid: 1
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Free space Ramsey spectroscopy in rubidium with noise below the quantum projection
limit
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 125
year: '2020'
...
---
_id: '8319'
abstract:
- lang: eng
text: We demonstrate that releasing atoms into free space from an optical lattice
does not deteriorate cavity-generated spin squeezing for metrological purposes.
In this work, an ensemble of 500000 spin-squeezed atoms in a high-finesse optical
cavity with near-uniform atom-cavity coupling is prepared, released into free
space, recaptured in the cavity, and probed. Up to ∼10 dB of metrologically relevant
squeezing is retrieved for 700μs free-fall times, and decaying levels of squeezing
are realized for up to 3 ms free-fall times. The degradation of squeezing results
from loss of atom-cavity coupling homogeneity between the initial squeezed state
generation and final collective state readout. A theoretical model is developed
to quantify this degradation and this model is experimentally validated.
acknowledgement: We thank N. Engelsen for comments on the manuscript. This work was
supported by the Office of Naval Research, Vannevar Bush Faculty Fellowship, Department
of Energy, and Defense Threat Reduction Agency. R.K. was partly supported by the
AQT/INQNET program at Caltech.
article_number: '012224'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Yunfan
full_name: Wu, Yunfan
last_name: Wu
- first_name: Rajiv
full_name: Krishnakumar, Rajiv
last_name: Krishnakumar
- first_name: Julián
full_name: Martínez-Rincón, Julián
last_name: Martínez-Rincón
- first_name: Benjamin K.
full_name: Malia, Benjamin K.
last_name: Malia
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Mark A.
full_name: Kasevich, Mark A.
last_name: Kasevich
citation:
ama: Wu Y, Krishnakumar R, Martínez-Rincón J, Malia BK, Hosten O, Kasevich MA. Retrieval
of cavity-generated atomic spin squeezing after free-space release. Physical
Review A. 2020;102(1). doi:10.1103/PhysRevA.102.012224
apa: Wu, Y., Krishnakumar, R., Martínez-Rincón, J., Malia, B. K., Hosten, O., &
Kasevich, M. A. (2020). Retrieval of cavity-generated atomic spin squeezing after
free-space release. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.102.012224
chicago: Wu, Yunfan, Rajiv Krishnakumar, Julián Martínez-Rincón, Benjamin K. Malia,
Onur Hosten, and Mark A. Kasevich. “Retrieval of Cavity-Generated Atomic Spin
Squeezing after Free-Space Release.” Physical Review A. American Physical
Society, 2020. https://doi.org/10.1103/PhysRevA.102.012224.
ieee: Y. Wu, R. Krishnakumar, J. Martínez-Rincón, B. K. Malia, O. Hosten, and M.
A. Kasevich, “Retrieval of cavity-generated atomic spin squeezing after free-space
release,” Physical Review A, vol. 102, no. 1. American Physical Society,
2020.
ista: Wu Y, Krishnakumar R, Martínez-Rincón J, Malia BK, Hosten O, Kasevich MA.
2020. Retrieval of cavity-generated atomic spin squeezing after free-space release.
Physical Review A. 102(1), 012224.
mla: Wu, Yunfan, et al. “Retrieval of Cavity-Generated Atomic Spin Squeezing after
Free-Space Release.” Physical Review A, vol. 102, no. 1, 012224, American
Physical Society, 2020, doi:10.1103/PhysRevA.102.012224.
short: Y. Wu, R. Krishnakumar, J. Martínez-Rincón, B.K. Malia, O. Hosten, M.A. Kasevich,
Physical Review A 102 (2020).
date_created: 2020-08-30T22:01:10Z
date_published: 2020-07-30T00:00:00Z
date_updated: 2024-02-28T13:11:28Z
day: '30'
department:
- _id: OnHo
doi: 10.1103/PhysRevA.102.012224
external_id:
arxiv:
- '1912.08334'
isi:
- '000555104200011'
intvolume: ' 102'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1912.08334
month: '07'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- '24699934'
issn:
- '24699926'
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Retrieval of cavity-generated atomic spin squeezing after free-space release
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 102
year: '2020'
...