--- _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: '14032' abstract: - lang: eng text: Arrays of Josephson junctions are governed by a competition between superconductivity and repulsive Coulomb interactions, and are expected to exhibit diverging low-temperature resistance when interactions exceed a critical level. Here we report a study of the transport and microwave response of Josephson arrays with interactions exceeding this level. Contrary to expectations, we observe that the array resistance drops dramatically as the temperature is decreased—reminiscent of superconducting behaviour—and then saturates at low temperature. Applying a magnetic field, we eventually observe a transition to a highly resistive regime. These observations can be understood within a theoretical picture that accounts for the effect of thermal fluctuations on the insulating phase. On the basis of the agreement between experiment and theory, we suggest that apparent superconductivity in our Josephson arrays arises from melting the zero-temperature insulator. acknowledged_ssus: - _id: M-Shop - _id: NanoFab acknowledgement: We thank D. Haviland, J. Pekola, C. Ciuti, A. Bubis and A. Shnirman for helpful feedback on the paper. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the Nanofabrication Facility. Work supported by the Austrian FWF grant P33692-N (S.M., J.S. and A.P.H.), the European Union’s Horizon 2020 Research and Innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (J.S.) and a NOMIS foundation research grant (J.M.F. and A.P.H.). article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Soham full_name: Mukhopadhyay, Soham id: FDE60288-A89D-11E9-947F-1AF6E5697425 last_name: Mukhopadhyay - first_name: Jorden L full_name: Senior, Jorden L id: 5479D234-2D30-11EA-89CC-40953DDC885E last_name: Senior orcid: 0000-0002-0672-9295 - first_name: Jaime full_name: Saez Mollejo, Jaime id: e0390f72-f6e0-11ea-865d-862393336714 last_name: Saez Mollejo - first_name: Denise full_name: Puglia, Denise id: 4D495994-AE37-11E9-AC72-31CAE5697425 last_name: Puglia orcid: 0000-0003-1144-2763 - 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 - 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: Mukhopadhyay S, Senior JL, Saez Mollejo J, et al. Superconductivity from a melted insulator in Josephson junction arrays. Nature Physics. 2023;19:1630-1635. doi:10.1038/s41567-023-02161-w apa: Mukhopadhyay, S., Senior, J. L., Saez Mollejo, J., Puglia, D., Zemlicka, M., Fink, J. M., & Higginbotham, A. P. (2023). Superconductivity from a melted insulator in Josephson junction arrays. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-023-02161-w chicago: Mukhopadhyay, Soham, Jorden L Senior, Jaime Saez Mollejo, Denise Puglia, Martin Zemlicka, Johannes M Fink, and Andrew P Higginbotham. “Superconductivity from a Melted Insulator in Josephson Junction Arrays.” Nature Physics. Springer Nature, 2023. https://doi.org/10.1038/s41567-023-02161-w. ieee: S. Mukhopadhyay et al., “Superconductivity from a melted insulator in Josephson junction arrays,” Nature Physics, vol. 19. Springer Nature, pp. 1630–1635, 2023. ista: Mukhopadhyay S, Senior JL, Saez Mollejo J, Puglia D, Zemlicka M, Fink JM, Higginbotham AP. 2023. Superconductivity from a melted insulator in Josephson junction arrays. Nature Physics. 19, 1630–1635. mla: Mukhopadhyay, Soham, et al. “Superconductivity from a Melted Insulator in Josephson Junction Arrays.” Nature Physics, vol. 19, Springer Nature, 2023, pp. 1630–35, doi:10.1038/s41567-023-02161-w. short: S. Mukhopadhyay, J.L. Senior, J. Saez Mollejo, D. Puglia, M. Zemlicka, J.M. Fink, A.P. Higginbotham, Nature Physics 19 (2023) 1630–1635. date_created: 2023-08-11T07:41:17Z date_published: 2023-11-01T00:00:00Z date_updated: 2024-01-29T11:27:49Z day: '01' ddc: - '530' department: - _id: GradSch - _id: AnHi - _id: JoFi doi: 10.1038/s41567-023-02161-w ec_funded: 1 external_id: isi: - '001054563800006' file: - access_level: open_access checksum: 1fc86d71bfbf836e221c1e925343adc5 content_type: application/pdf creator: dernst date_created: 2024-01-29T11:25:38Z date_updated: 2024-01-29T11:25:38Z file_id: '14899' file_name: 2023_NaturePhysics_Mukhopadhyay.pdf file_size: 1977706 relation: main_file success: 1 file_date_updated: 2024-01-29T11:25:38Z has_accepted_license: '1' intvolume: ' 19' isi: 1 keyword: - General Physics and Astronomy language: - iso: eng month: '11' oa: 1 oa_version: Published Version page: 1630-1635 project: - _id: 0aa3608a-070f-11eb-9043-e9cd8a2bd931 grant_number: P33692 name: Cavity electromechanics across a quantum phase transition - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: eb9b30ac-77a9-11ec-83b8-871f581d53d2 name: Protected states of quantum matter - _id: bd5b4ec5-d553-11ed-ba76-a6eedb083344 name: Protected states of quantum matter publication: Nature Physics publication_identifier: eissn: - 1745-2481 issn: - 1745-2473 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Superconductivity from a melted insulator in Josephson junction arrays 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: 19 year: '2023' ... --- _id: '12913' abstract: - lang: eng text: The coexistence of gate-tunable superconducting, magnetic and topological orders in magic-angle twisted bilayer graphene provides opportunities for the creation of hybrid Josephson junctions. Here we report the fabrication of gate-defined symmetry-broken Josephson junctions in magic-angle twisted bilayer graphene, where the weak link is gate-tuned close to the correlated insulator state with a moiré filling factor of υ = −2. We observe a phase-shifted and asymmetric Fraunhofer pattern with a pronounced magnetic hysteresis. Our theoretical calculations of the junction weak link—with valley polarization and orbital magnetization—explain most of these unconventional features. The effects persist up to the critical temperature of 3.5 K, with magnetic hysteresis observed below 800 mK. We show how the combination of magnetization and its current-induced magnetization switching allows us to realise a programmable zero-field superconducting diode. Our results represent a major advance towards the creation of future superconducting quantum electronic devices. acknowledgement: We are grateful for the fruitful discussions with Allan MacDonald and Andrei Bernevig. D.K.E. acknowledges support from the Ministry of Economy and Competitiveness of Spain through the “Severo Ochoa” program for Centers of Excellence in R&D (SE5-0522), Fundació Privada Cellex, Fundació Privada Mir-Puig, the Generalitat de Catalunya through the CERCA program, funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 852927)” and the La Caixa Foundation. K.T.L. acknowledges the support of the Ministry of Science and Technology of China and the HKRGC through grants MOST20SC04, C6025-19G, 16310219, 16309718, and 16310520. J.D.M. acknowledges support from the INPhINIT ‘la Caixa’ Foundation (ID 100010434) fellowship program (LCF/BQ/DI19/11730021). Y.M.X. acknowledges the support of HKRGC through Grant No. PDFS2223-6S01. article_number: '2396' article_processing_charge: No article_type: original author: - first_name: J. full_name: Díez-Mérida, J. last_name: Díez-Mérida - first_name: A. full_name: Díez-Carlón, A. last_name: Díez-Carlón - first_name: S. Y. full_name: Yang, S. Y. last_name: Yang - first_name: Y. M. full_name: Xie, Y. M. last_name: Xie - first_name: X. J. full_name: Gao, X. J. last_name: Gao - first_name: Jorden L full_name: Senior, Jorden L id: 5479D234-2D30-11EA-89CC-40953DDC885E last_name: Senior - first_name: K. full_name: Watanabe, K. last_name: Watanabe - first_name: T. full_name: Taniguchi, T. last_name: Taniguchi - first_name: X. full_name: Lu, X. last_name: Lu - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: K. T. full_name: Law, K. T. last_name: Law - first_name: Dmitri K. full_name: Efetov, Dmitri K. last_name: Efetov citation: ama: Díez-Mérida J, Díez-Carlón A, Yang SY, et al. Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. Nature Communications. 2023;14. doi:10.1038/s41467-023-38005-7 apa: Díez-Mérida, J., Díez-Carlón, A., Yang, S. Y., Xie, Y. M., Gao, X. J., Senior, J. L., … Efetov, D. K. (2023). Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-023-38005-7 chicago: Díez-Mérida, J., A. Díez-Carlón, S. Y. Yang, Y. M. Xie, X. J. Gao, Jorden L Senior, K. Watanabe, et al. “Symmetry-Broken Josephson Junctions and Superconducting Diodes in Magic-Angle Twisted Bilayer Graphene.” Nature Communications. Springer Nature, 2023. https://doi.org/10.1038/s41467-023-38005-7. ieee: J. Díez-Mérida et al., “Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene,” Nature Communications, vol. 14. Springer Nature, 2023. ista: Díez-Mérida J, Díez-Carlón A, Yang SY, Xie YM, Gao XJ, Senior JL, Watanabe K, Taniguchi T, Lu X, Higginbotham AP, Law KT, Efetov DK. 2023. Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. Nature Communications. 14, 2396. mla: Díez-Mérida, J., et al. “Symmetry-Broken Josephson Junctions and Superconducting Diodes in Magic-Angle Twisted Bilayer Graphene.” Nature Communications, vol. 14, 2396, Springer Nature, 2023, doi:10.1038/s41467-023-38005-7. short: J. Díez-Mérida, A. Díez-Carlón, S.Y. Yang, Y.M. Xie, X.J. Gao, J.L. Senior, K. Watanabe, T. Taniguchi, X. Lu, A.P. Higginbotham, K.T. Law, D.K. Efetov, Nature Communications 14 (2023). date_created: 2023-05-07T22:01:03Z date_published: 2023-04-26T00:00:00Z date_updated: 2023-08-01T14:34:00Z day: '26' ddc: - '530' department: - _id: AnHi doi: 10.1038/s41467-023-38005-7 external_id: isi: - '000979744000004' pmid: - '37100775' file: - access_level: open_access checksum: a778105665c10beb2354c92d2b295115 content_type: application/pdf creator: dernst date_created: 2023-05-08T07:26:40Z date_updated: 2023-05-08T07:26:40Z file_id: '12917' file_name: 2023_NatureComm_DiezMerida.pdf file_size: 1405588 relation: main_file success: 1 file_date_updated: 2023-05-08T07:26:40Z has_accepted_license: '1' intvolume: ' 14' isi: 1 language: - iso: eng month: '04' oa: 1 oa_version: Published Version pmid: 1 publication: Nature Communications publication_identifier: eissn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene 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: 14 year: '2023' ... --- _id: '10851' abstract: - lang: eng text: Superconductor-semiconductor hybrid devices are at the heart of several proposed approaches to quantum information processing, but their basic properties remain to be understood. We embed a twodimensional Al-InAs hybrid system in a resonant microwave circuit, probing the breakdown of superconductivity due to an applied magnetic field. We find a fingerprint from the two-component nature of the hybrid system, and quantitatively compare with a theory that includes the contribution of intraband p±ip pairing in the InAs, as well as the emergence of Bogoliubov-Fermi surfaces due to magnetic field. Separately resolving the Al and InAs contributions allows us to determine the carrier density and mobility in the InAs. acknowledged_ssus: - _id: M-Shop - _id: NanoFab acknowledgement: M. S. acknowledges useful discussions with A. Levchenko and P. A. Lee, and E. Berg. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility. J. S. and A. G. acknowledge funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 754411.W. M. Hatefipour, W. M. Strickland and J. Shabani acknowledge funding from Office of Naval Research Award No. N00014-21-1-2450. article_number: '107701' 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: Jorden L full_name: Senior, Jorden L id: 5479D234-2D30-11EA-89CC-40953DDC885E last_name: Senior orcid: 0000-0002-0672-9295 - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: M. full_name: Hatefipour, M. last_name: Hatefipour - first_name: W. M. full_name: Strickland, W. M. last_name: Strickland - first_name: J. full_name: Shabani, J. last_name: Shabani - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - 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, Senior JL, Ghazaryan A, et al. Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. 2022;128(10). doi:10.1103/physrevlett.128.107701 apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M., Shabani, J., … Higginbotham, A. P. (2022). Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.128.107701 chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland, J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Detecting Induced P±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” Physical Review Letters. American Physical Society, 2022. https://doi.org/10.1103/physrevlett.128.107701. ieee: D. T. Phan et al., “Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit,” Physical Review Letters, vol. 128, no. 10. American Physical Society, 2022. ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn M, Higginbotham AP. 2022. Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. 128(10), 107701. mla: Phan, Duc T., et al. “Detecting Induced P±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” Physical Review Letters, vol. 128, no. 10, 107701, American Physical Society, 2022, doi:10.1103/physrevlett.128.107701. short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J. Shabani, M. Serbyn, A.P. Higginbotham, Physical Review Letters 128 (2022). date_created: 2022-03-17T11:37:47Z date_published: 2022-03-11T00:00:00Z date_updated: 2023-11-30T10:56:03Z day: '11' department: - _id: MaSe - _id: AnHi doi: 10.1103/physrevlett.128.107701 ec_funded: 1 external_id: arxiv: - '2107.03695' isi: - '000771391100002' pmid: - ' 35333085' intvolume: ' 128' isi: 1 issue: '10' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2107.03695 month: '03' oa: 1 oa_version: Preprint pmid: 1 project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' related_material: link: - description: News on ISTA Website relation: press_release url: https://ista.ac.at/en/news/characterizing-super-semi-sandwiches-for-quantum-computing/ record: - id: '10029' relation: earlier_version status: public - id: '14547' relation: dissertation_contains status: public scopus_import: '1' status: public title: Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 128 year: '2022' ... --- _id: '10589' abstract: - lang: eng text: Superconducting devices ubiquitously have an excess of broken Cooper pairs, which can hamper their performance. It is widely believed that external radiation is responsible but a study now suggests there must be an additional, unknown source. article_processing_charge: No article_type: letter_note author: - 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: Higginbotham AP. A secret source. Nature Physics. 2022;18:126. doi:10.1038/s41567-021-01459-x apa: Higginbotham, A. P. (2022). A secret source. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-021-01459-x chicago: Higginbotham, Andrew P. “A Secret Source.” Nature Physics. Springer Nature, 2022. https://doi.org/10.1038/s41567-021-01459-x. ieee: A. P. Higginbotham, “A secret source,” Nature Physics, vol. 18. Springer Nature, p. 126, 2022. ista: Higginbotham AP. 2022. A secret source. Nature Physics. 18, 126. mla: Higginbotham, Andrew P. “A Secret Source.” Nature Physics, vol. 18, Springer Nature, 2022, p. 126, doi:10.1038/s41567-021-01459-x. short: A.P. Higginbotham, Nature Physics 18 (2022) 126. date_created: 2022-01-02T23:01:35Z date_published: 2022-02-01T00:00:00Z date_updated: 2023-08-02T13:43:11Z day: '01' department: - _id: AnHi doi: 10.1038/s41567-021-01459-x external_id: isi: - '000733431000007' intvolume: ' 18' isi: 1 keyword: - superconducting devices - superconducting properties and materials language: - iso: eng month: '02' oa_version: None page: '126' publication: Nature Physics publication_identifier: eissn: - 1745-2481 issn: - 1745-2473 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: A secret source type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 18 year: '2022' ... --- _id: '13080' abstract: - lang: eng text: "Data for the manuscript 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire' ([2006.01275] Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire (arxiv.org))\r\n\r\nWe upload a pdf with extended data sets, and the raw data for these extended datasets as well." article_processing_charge: No author: - first_name: Denise full_name: Puglia, Denise id: 4D495994-AE37-11E9-AC72-31CAE5697425 last_name: Puglia - first_name: Esteban full_name: Martinez, Esteban last_name: Martinez - first_name: Gerbold full_name: Menard, Gerbold last_name: Menard - first_name: Andreas full_name: Pöschl, Andreas last_name: Pöschl - first_name: Sergei full_name: Gronin, Sergei last_name: Gronin - first_name: Geoffrey full_name: Gardner, Geoffrey last_name: Gardner - first_name: Ray full_name: Kallaher, Ray last_name: Kallaher - first_name: Michael full_name: Manfra, Michael last_name: Manfra - first_name: Charles full_name: Marcus, Charles last_name: Marcus - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Lucas full_name: Casparis, Lucas last_name: Casparis citation: ama: Puglia D, Martinez E, Menard G, et al. Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire. 2021. doi:10.5281/ZENODO.4592435 apa: Puglia, D., Martinez, E., Menard, G., Pöschl, A., Gronin, S., Gardner, G., … Casparis, L. (2021). Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire. Zenodo. https://doi.org/10.5281/ZENODO.4592435 chicago: Puglia, Denise, Esteban Martinez, Gerbold Menard, Andreas Pöschl, Sergei Gronin, Geoffrey Gardner, Ray Kallaher, et al. “Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.4592435. ieee: D. Puglia et al., “Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Zenodo, 2021. ista: Puglia D, Martinez E, Menard G, Pöschl A, Gronin S, Gardner G, Kallaher R, Manfra M, Marcus C, Higginbotham AP, Casparis L. 2021. Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire, Zenodo, 10.5281/ZENODO.4592435. mla: Puglia, Denise, et al. Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire. Zenodo, 2021, doi:10.5281/ZENODO.4592435. short: D. Puglia, E. Martinez, G. Menard, A. Pöschl, S. Gronin, G. Gardner, R. Kallaher, M. Manfra, C. Marcus, A.P. Higginbotham, L. Casparis, (2021). date_created: 2023-05-23T17:11:28Z date_published: 2021-03-09T00:00:00Z date_updated: 2023-08-08T14:08:07Z day: '09' ddc: - '530' department: - _id: AnHi doi: 10.5281/ZENODO.4592435 main_file_link: - open_access: '1' url: https://doi.org/10.5281/zenodo.4592460 month: '03' oa: 1 oa_version: Published Version publisher: Zenodo related_material: link: - relation: software url: https://github.com/caslu85/Induced-Gap-Closing-Shared/tree/1.1.3 record: - id: '9570' relation: used_in_publication status: public status: public title: Data for 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire type: research_data_reference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2021' ... --- _id: '9570' abstract: - lang: eng text: We present conductance-matrix measurements in long, three-terminal hybrid superconductor-semiconductor nanowires, and compare with theoretical predictions of a magnetic-field-driven, topological quantum phase transition. By examining the nonlocal conductance, we identify the closure of the excitation gap in the bulk of the semiconductor before the emergence of zero-bias peaks, ruling out spurious gap-closure signatures from localized states. We observe that after the gap closes, nonlocal signals and zero-bias peaks fluctuate strongly at both ends, inconsistent with a simple picture of clean topological superconductivity. acknowledgement: We acknowledge insightful discussions with K. Flensberg, E. B. Hansen, T. Karzig, R. Lutchyn, D. Pikulin, E. Prada, and R. Aguado. This work was supported by Microsoft Project Q and the Danmarks Grundforskningsfond. C.M.M. acknowledges support from the Villum Fonden. A.P.H. and L.C. contributed equally to this work. article_number: '235201' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Denise full_name: Puglia, Denise id: 4D495994-AE37-11E9-AC72-31CAE5697425 last_name: Puglia - first_name: E. A. full_name: Martinez, E. A. last_name: Martinez - first_name: G. C. full_name: Ménard, G. C. last_name: Ménard - first_name: A. full_name: Pöschl, A. last_name: Pöschl - first_name: S. full_name: Gronin, S. last_name: Gronin - first_name: G. C. full_name: Gardner, G. C. last_name: Gardner - first_name: R. full_name: Kallaher, R. last_name: Kallaher - first_name: M. J. full_name: Manfra, M. J. last_name: Manfra - first_name: C. M. full_name: Marcus, C. M. last_name: Marcus - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: L. full_name: Casparis, L. last_name: Casparis citation: ama: Puglia D, Martinez EA, Ménard GC, et al. Closing of the induced gap in a hybrid superconductor-semiconductor nanowire. Physical Review B. 2021;103(23). doi:10.1103/PhysRevB.103.235201 apa: Puglia, D., Martinez, E. A., Ménard, G. C., Pöschl, A., Gronin, S., Gardner, G. C., … Casparis, L. (2021). Closing of the induced gap in a hybrid superconductor-semiconductor nanowire. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.103.235201 chicago: Puglia, Denise, E. A. Martinez, G. C. Ménard, A. Pöschl, S. Gronin, G. C. Gardner, R. Kallaher, et al. “Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Physical Review B. American Physical Society, 2021. https://doi.org/10.1103/PhysRevB.103.235201. ieee: D. Puglia et al., “Closing of the induced gap in a hybrid superconductor-semiconductor nanowire,” Physical Review B, vol. 103, no. 23. American Physical Society, 2021. ista: Puglia D, Martinez EA, Ménard GC, Pöschl A, Gronin S, Gardner GC, Kallaher R, Manfra MJ, Marcus CM, Higginbotham AP, Casparis L. 2021. Closing of the induced gap in a hybrid superconductor-semiconductor nanowire. Physical Review B. 103(23), 235201. mla: Puglia, Denise, et al. “Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Physical Review B, vol. 103, no. 23, 235201, American Physical Society, 2021, doi:10.1103/PhysRevB.103.235201. short: D. Puglia, E.A. Martinez, G.C. Ménard, A. Pöschl, S. Gronin, G.C. Gardner, R. Kallaher, M.J. Manfra, C.M. Marcus, A.P. Higginbotham, L. Casparis, Physical Review B 103 (2021). date_created: 2021-06-20T22:01:33Z date_published: 2021-06-15T00:00:00Z date_updated: 2023-08-08T14:08:08Z day: '15' department: - _id: AnHi doi: 10.1103/PhysRevB.103.235201 external_id: arxiv: - '2006.01275' isi: - '000661512500002' intvolume: ' 103' isi: 1 issue: '23' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2006.01275 month: '06' 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' related_material: record: - id: '13080' relation: research_data status: public scopus_import: '1' status: public title: Closing of the induced gap in a hybrid superconductor-semiconductor nanowire type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 103 year: '2021' ... --- _id: '9636' article_processing_charge: No author: - 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: Higginbotham AP. Data for “Breakdown of induced p ± ip pairing in a superconductor-semiconductor hybrid.” 2021. apa: Higginbotham, A. P. (2021). Data for “Breakdown of induced p ± ip pairing in a superconductor-semiconductor hybrid.” Institute of Science and Technology Austria. chicago: Higginbotham, Andrew P. “Data for ‘Breakdown of Induced p ± Ip Pairing in a Superconductor-Semiconductor Hybrid.’” Institute of Science and Technology Austria, 2021. ieee: A. P. Higginbotham, “Data for ‘Breakdown of induced p ± ip pairing in a superconductor-semiconductor hybrid.’” Institute of Science and Technology Austria, 2021. ista: Higginbotham AP. 2021. Data for ‘Breakdown of induced p ± ip pairing in a superconductor-semiconductor hybrid’, Institute of Science and Technology Austria. mla: Higginbotham, Andrew P. Data for “Breakdown of Induced p ± Ip Pairing in a Superconductor-Semiconductor Hybrid.” Institute of Science and Technology Austria, 2021. short: A.P. Higginbotham, (2021). date_created: 2021-07-07T20:43:10Z date_published: 2021-01-01T00:00:00Z date_updated: 2024-02-21T12:36:52Z department: - _id: AnHi file: - access_level: open_access checksum: 18e90687ec7bbd75f8bfea4d8293fb30 content_type: application/zip creator: ahigginb date_created: 2021-07-07T20:37:28Z date_updated: 2021-07-07T20:37:28Z file_id: '9637' file_name: figures_data.zip file_size: 3345244 relation: main_file success: 1 file_date_updated: 2021-07-07T20:37:28Z has_accepted_license: '1' license: https://creativecommons.org/licenses/by-nc/4.0/ oa: 1 oa_version: Submitted Version publisher: Institute of Science and Technology Austria related_material: record: - id: '10029' relation: used_in_publication status: public status: public title: Data for "Breakdown of induced p ± ip pairing in a superconductor-semiconductor hybrid" tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: research_data user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2021' ... --- _id: '10029' abstract: - lang: eng text: Superconductor-semiconductor hybrids are platforms for realizing effective p-wave superconductivity. Spin-orbit coupling, combined with the proximity effect, causes the two-dimensional semiconductor to inherit p±ip intraband pairing, and application of magnetic field can then result in transitions to the normal state, partial Bogoliubov Fermi surfaces, or topological phases with Majorana modes. Experimentally probing the hybrid superconductor-semiconductor interface is challenging due to the shunting effect of the conventional superconductor. Consequently, the nature of induced pairing remains an open question. Here, we use the circuit quantum electrodynamics architecture to probe induced superconductivity in a two dimensional Al-InAs hybrid system. We observe a strong suppression of superfluid density and enhanced dissipation driven by magnetic field, which cannot be accounted for by the depairing theory of an s-wave superconductor. These observations are explained by a picture of independent intraband p±ip superconductors giving way to partial Bogoliubov Fermi surfaces, and allow for the first characterization of key properties of the hybrid superconducting system. acknowledged_ssus: - _id: M-Shop - _id: NanoFab acknowledgement: This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility. JS and AG were supported by funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement No.754411. article_number: '2107.03695' article_processing_charge: No arxiv: 1 author: - first_name: Duc T full_name: Phan, Duc T id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87 last_name: Phan - first_name: Jorden L full_name: Senior, Jorden L id: 5479D234-2D30-11EA-89CC-40953DDC885E last_name: Senior orcid: 0000-0002-0672-9295 - first_name: Areg full_name: Ghazaryan, Areg id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87 last_name: Ghazaryan orcid: 0000-0001-9666-3543 - first_name: M. full_name: Hatefipour, M. last_name: Hatefipour - first_name: W. M. full_name: Strickland, W. M. last_name: Strickland - first_name: J. full_name: Shabani, J. last_name: Shabani - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - 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, Senior JL, Ghazaryan A, et al. Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid. arXiv. apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M., Shabani, J., … Higginbotham, A. P. (n.d.). Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid. arXiv. chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland, J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, n.d. ieee: D. T. Phan et al., “Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid,” arXiv. . ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn M, Higginbotham AP. Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid. arXiv, 2107.03695. mla: Phan, Duc T., et al. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, 2107.03695. short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J. Shabani, M. Serbyn, A.P. Higginbotham, ArXiv (n.d.). date_created: 2021-09-21T08:41:02Z date_published: 2021-07-08T00:00:00Z date_updated: 2024-02-21T12:36:52Z day: '08' department: - _id: MaSe - _id: AnHi - _id: MiLe ec_funded: 1 external_id: arxiv: - '2107.03695' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2107.03695 month: '07' oa: 1 oa_version: Preprint project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships publication: arXiv publication_status: submitted related_material: record: - id: '10851' relation: later_version status: public - id: '9636' relation: research_data status: public status: public title: Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2021' ... --- _id: '7477' abstract: - lang: eng text: We present conductance-matrix measurements of a three-terminal superconductor-semiconductor hybrid device consisting of two normal leads and one superconducting lead. Using a symmetry decomposition of the conductance, we find that antisymmetric components of pairs of local and nonlocal conductances qualitatively match at energies below the superconducting gap, and we compare this finding with symmetry relations based on a noninteracting scattering matrix approach. Further, the local charge character of Andreev bound states is extracted from the symmetry-decomposed conductance data and is found to be similar at both ends of the device and tunable with gate voltage. Finally, we measure the conductance matrix as a function of magnetic field and identify correlated splittings in low-energy features, demonstrating how conductance-matrix measurements can complement traditional single-probe measurements in the search for Majorana zero modes. article_number: '036802' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: G. C. full_name: Ménard, G. C. last_name: Ménard - first_name: G. L. R. full_name: Anselmetti, G. L. R. last_name: Anselmetti - first_name: E. A. full_name: Martinez, E. A. last_name: Martinez - first_name: D. full_name: Puglia, D. last_name: Puglia - first_name: F. K. full_name: Malinowski, F. K. last_name: Malinowski - first_name: J. S. full_name: Lee, J. S. last_name: Lee - first_name: S. full_name: Choi, S. last_name: Choi - first_name: M. full_name: Pendharkar, M. last_name: Pendharkar - first_name: C. J. full_name: Palmstrøm, C. J. last_name: Palmstrøm - first_name: K. full_name: Flensberg, K. last_name: Flensberg - first_name: C. M. full_name: Marcus, C. M. last_name: Marcus - first_name: L. full_name: Casparis, L. last_name: Casparis - 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: Ménard GC, Anselmetti GLR, Martinez EA, et al. Conductance-matrix symmetries of a three-terminal hybrid device. Physical Review Letters. 2020;124(3). doi:10.1103/physrevlett.124.036802 apa: Ménard, G. C., Anselmetti, G. L. R., Martinez, E. A., Puglia, D., Malinowski, F. K., Lee, J. S., … Higginbotham, A. P. (2020). Conductance-matrix symmetries of a three-terminal hybrid device. Physical Review Letters. APS. https://doi.org/10.1103/physrevlett.124.036802 chicago: Ménard, G. C., G. L. R. Anselmetti, E. A. Martinez, D. Puglia, F. K. Malinowski, J. S. Lee, S. Choi, et al. “Conductance-Matrix Symmetries of a Three-Terminal Hybrid Device.” Physical Review Letters. APS, 2020. https://doi.org/10.1103/physrevlett.124.036802. ieee: G. C. Ménard et al., “Conductance-matrix symmetries of a three-terminal hybrid device,” Physical Review Letters, vol. 124, no. 3. APS, 2020. ista: Ménard GC, Anselmetti GLR, Martinez EA, Puglia D, Malinowski FK, Lee JS, Choi S, Pendharkar M, Palmstrøm CJ, Flensberg K, Marcus CM, Casparis L, Higginbotham AP. 2020. Conductance-matrix symmetries of a three-terminal hybrid device. Physical Review Letters. 124(3), 036802. mla: Ménard, G. C., et al. “Conductance-Matrix Symmetries of a Three-Terminal Hybrid Device.” Physical Review Letters, vol. 124, no. 3, 036802, APS, 2020, doi:10.1103/physrevlett.124.036802. short: G.C. Ménard, G.L.R. Anselmetti, E.A. Martinez, D. Puglia, F.K. Malinowski, J.S. Lee, S. Choi, M. Pendharkar, C.J. Palmstrøm, K. Flensberg, C.M. Marcus, L. Casparis, A.P. Higginbotham, Physical Review Letters 124 (2020). date_created: 2020-02-11T08:50:02Z date_published: 2020-01-24T00:00:00Z date_updated: 2021-01-12T08:13:48Z day: '24' doi: 10.1103/physrevlett.124.036802 extern: '1' external_id: arxiv: - '1905.05505' intvolume: ' 124' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1905.05505 month: '01' oa: 1 oa_version: Preprint publication: Physical Review Letters publication_identifier: issn: - 0031-9007 - 1079-7114 publication_status: published publisher: APS quality_controlled: '1' status: public title: Conductance-matrix symmetries of a three-terminal hybrid device type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 124 year: '2020' ... --- _id: '7478' abstract: - lang: eng text: Two-terminal conductance spectroscopy of superconducting devices is a common tool for probing Andreev and Majorana bound states. Here, we study theoretically a three-terminal setup, with two normal leads coupled to a grounded superconducting terminal. Using a single-electron scattering matrix, we derive the subgap conductance matrix for the normal leads and discuss its symmetries. In particular, we show that the local and the nonlocal elements of the conductance matrix have pairwise identical antisymmetric components. Moreover, we find that the nonlocal elements are directly related to the local BCS charges of the bound states close to the normal probes and we show how the BCS charge of overlapping Majorana bound states can be extracted from experiments. article_number: '036801' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Jeroen full_name: Danon, Jeroen last_name: Danon - first_name: Anna Birk full_name: Hellenes, Anna Birk last_name: Hellenes - first_name: Esben Bork full_name: Hansen, Esben Bork last_name: Hansen - first_name: Lucas full_name: Casparis, Lucas last_name: Casparis - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Karsten full_name: Flensberg, Karsten last_name: Flensberg citation: ama: 'Danon J, Hellenes AB, Hansen EB, Casparis L, Higginbotham AP, Flensberg K. Nonlocal conductance spectroscopy of Andreev bound states: Symmetry relations and BCS charges. Physical Review Letters. 2020;124(3). doi:10.1103/physrevlett.124.036801' apa: 'Danon, J., Hellenes, A. B., Hansen, E. B., Casparis, L., Higginbotham, A. P., & Flensberg, K. (2020). Nonlocal conductance spectroscopy of Andreev bound states: Symmetry relations and BCS charges. Physical Review Letters. APS. https://doi.org/10.1103/physrevlett.124.036801' chicago: 'Danon, Jeroen, Anna Birk Hellenes, Esben Bork Hansen, Lucas Casparis, Andrew P Higginbotham, and Karsten Flensberg. “Nonlocal Conductance Spectroscopy of Andreev Bound States: Symmetry Relations and BCS Charges.” Physical Review Letters. APS, 2020. https://doi.org/10.1103/physrevlett.124.036801.' ieee: 'J. Danon, A. B. Hellenes, E. B. Hansen, L. Casparis, A. P. Higginbotham, and K. Flensberg, “Nonlocal conductance spectroscopy of Andreev bound states: Symmetry relations and BCS charges,” Physical Review Letters, vol. 124, no. 3. APS, 2020.' ista: 'Danon J, Hellenes AB, Hansen EB, Casparis L, Higginbotham AP, Flensberg K. 2020. Nonlocal conductance spectroscopy of Andreev bound states: Symmetry relations and BCS charges. Physical Review Letters. 124(3), 036801.' mla: 'Danon, Jeroen, et al. “Nonlocal Conductance Spectroscopy of Andreev Bound States: Symmetry Relations and BCS Charges.” Physical Review Letters, vol. 124, no. 3, 036801, APS, 2020, doi:10.1103/physrevlett.124.036801.' short: J. Danon, A.B. Hellenes, E.B. Hansen, L. Casparis, A.P. Higginbotham, K. Flensberg, Physical Review Letters 124 (2020). date_created: 2020-02-11T08:55:40Z date_published: 2020-01-24T00:00:00Z date_updated: 2021-01-12T08:13:48Z day: '24' doi: 10.1103/physrevlett.124.036801 extern: '1' external_id: arxiv: - '1905.05438' intvolume: ' 124' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1905.05438 month: '01' oa: 1 oa_version: Preprint publication: Physical Review Letters publication_identifier: issn: - 0031-9007 - 1079-7114 publication_status: published publisher: APS quality_controlled: '1' status: public title: 'Nonlocal conductance spectroscopy of Andreev bound states: Symmetry relations and BCS charges' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 124 year: '2020' ... --- _id: '7145' abstract: - lang: eng text: End-to-end correlated bound states are investigated in superconductor-semiconductor hybrid nanowires at zero magnetic field. Peaks in subgap conductance are independently identified from each wire end, and a cross-correlation function is computed that counts end-to-end coincidences, averaging over thousands of subgap features. Strong correlations in a short, 300-nm device are reduced by a factor of 4 in a long, 900-nm device. In addition, subgap conductance distributions are investigated, and correlations between the left and right distributions are identified based on their mutual information. article_number: '205412' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: G. L. R. full_name: Anselmetti, G. L. R. last_name: Anselmetti - first_name: E. A. full_name: Martinez, E. A. last_name: Martinez - first_name: G. C. full_name: Ménard, G. C. last_name: Ménard - first_name: D. full_name: Puglia, D. last_name: Puglia - first_name: F. K. full_name: Malinowski, F. K. last_name: Malinowski - first_name: J. S. full_name: Lee, J. S. last_name: Lee - first_name: S. full_name: Choi, S. last_name: Choi - first_name: M. full_name: Pendharkar, M. last_name: Pendharkar - first_name: C. J. full_name: Palmstrøm, C. J. last_name: Palmstrøm - first_name: C. M. full_name: Marcus, C. M. last_name: Marcus - first_name: L. full_name: Casparis, L. last_name: Casparis - 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: Anselmetti GLR, Martinez EA, Ménard GC, et al. End-to-end correlated subgap states in hybrid nanowires. Physical Review B. 2019;100(20). doi:10.1103/physrevb.100.205412 apa: Anselmetti, G. L. R., Martinez, E. A., Ménard, G. C., Puglia, D., Malinowski, F. K., Lee, J. S., … Higginbotham, A. P. (2019). End-to-end correlated subgap states in hybrid nanowires. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.100.205412 chicago: Anselmetti, G. L. R., E. A. Martinez, G. C. Ménard, D. Puglia, F. K. Malinowski, J. S. Lee, S. Choi, et al. “End-to-End Correlated Subgap States in Hybrid Nanowires.” Physical Review B. American Physical Society, 2019. https://doi.org/10.1103/physrevb.100.205412. ieee: G. L. R. Anselmetti et al., “End-to-end correlated subgap states in hybrid nanowires,” Physical Review B, vol. 100, no. 20. American Physical Society, 2019. ista: Anselmetti GLR, Martinez EA, Ménard GC, Puglia D, Malinowski FK, Lee JS, Choi S, Pendharkar M, Palmstrøm CJ, Marcus CM, Casparis L, Higginbotham AP. 2019. End-to-end correlated subgap states in hybrid nanowires. Physical Review B. 100(20), 205412. mla: Anselmetti, G. L. R., et al. “End-to-End Correlated Subgap States in Hybrid Nanowires.” Physical Review B, vol. 100, no. 20, 205412, American Physical Society, 2019, doi:10.1103/physrevb.100.205412. short: G.L.R. Anselmetti, E.A. Martinez, G.C. Ménard, D. Puglia, F.K. Malinowski, J.S. Lee, S. Choi, M. Pendharkar, C.J. Palmstrøm, C.M. Marcus, L. Casparis, A.P. Higginbotham, Physical Review B 100 (2019). date_created: 2019-12-04T16:02:25Z date_published: 2019-11-15T00:00:00Z date_updated: 2024-02-28T13:13:51Z day: '15' department: - _id: AnHi doi: 10.1103/physrevb.100.205412 external_id: arxiv: - '1908.05549' isi: - '000495967500006' intvolume: ' 100' isi: 1 issue: '20' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1908.05549 month: '11' oa: 1 oa_version: Preprint publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: End-to-end correlated subgap states in hybrid nanowires type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 100 year: '2019' ... --- _id: '6368' abstract: - lang: eng text: An optical network of superconducting quantum bits (qubits) is an appealing platform for quantum communication and distributed quantum computing, but developing a quantum-compatible link between the microwave and optical domains remains an outstanding challenge. Operating at T < 100 mK temperatures, as required for quantum electrical circuits, we demonstrate a mechanically mediated microwave–optical converter with 47% conversion efficiency, and use a classical feed-forward protocol to reduce added noise to 38 photons. The feed-forward protocol harnesses our discovery that noise emitted from the two converter output ports is strongly correlated because both outputs record thermal motion of the same mechanical mode. We also discuss a quantum feed-forward protocol that, given high system efficiencies, would allow quantum information to be transferred even when thermal phonons enter the mechanical element faster than the electro-optic conversion rate. arxiv: 1 author: - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: P. S. full_name: Burns, P. S. last_name: Burns - first_name: M. D. full_name: Urmey, M. D. last_name: Urmey - first_name: R. W. full_name: Peterson, R. W. last_name: Peterson - first_name: N. S. full_name: Kampel, N. S. last_name: Kampel - first_name: B. M. full_name: Brubaker, B. M. last_name: Brubaker - first_name: G. full_name: Smith, G. last_name: Smith - first_name: K. W. full_name: Lehnert, K. W. last_name: Lehnert - first_name: C. A. full_name: Regal, C. A. last_name: Regal citation: ama: Higginbotham AP, Burns PS, Urmey MD, et al. Harnessing electro-optic correlations in an efficient mechanical converter. Nature Physics. 2018;14(10):1038-1042. doi:10.1038/s41567-018-0210-0 apa: Higginbotham, A. P., Burns, P. S., Urmey, M. D., Peterson, R. W., Kampel, N. S., Brubaker, B. M., … Regal, C. A. (2018). Harnessing electro-optic correlations in an efficient mechanical converter. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-018-0210-0 chicago: Higginbotham, Andrew P, P. S. Burns, M. D. Urmey, R. W. Peterson, N. S. Kampel, B. M. Brubaker, G. Smith, K. W. Lehnert, and C. A. Regal. “Harnessing Electro-Optic Correlations in an Efficient Mechanical Converter.” Nature Physics. Springer Nature, 2018. https://doi.org/10.1038/s41567-018-0210-0. ieee: A. P. Higginbotham et al., “Harnessing electro-optic correlations in an efficient mechanical converter,” Nature Physics, vol. 14, no. 10. Springer Nature, pp. 1038–1042, 2018. ista: Higginbotham AP, Burns PS, Urmey MD, Peterson RW, Kampel NS, Brubaker BM, Smith G, Lehnert KW, Regal CA. 2018. Harnessing electro-optic correlations in an efficient mechanical converter. Nature Physics. 14(10), 1038–1042. mla: Higginbotham, Andrew P., et al. “Harnessing Electro-Optic Correlations in an Efficient Mechanical Converter.” Nature Physics, vol. 14, no. 10, Springer Nature, 2018, pp. 1038–42, doi:10.1038/s41567-018-0210-0. short: A.P. Higginbotham, P.S. Burns, M.D. Urmey, R.W. Peterson, N.S. Kampel, B.M. Brubaker, G. Smith, K.W. Lehnert, C.A. Regal, Nature Physics 14 (2018) 1038–1042. date_created: 2019-05-03T09:17:20Z date_published: 2018-10-01T00:00:00Z date_updated: 2021-01-12T08:07:15Z day: '01' doi: 10.1038/s41567-018-0210-0 extern: '1' external_id: arxiv: - '1712.06535' intvolume: ' 14' issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1712.06535 month: '10' oa: 1 oa_version: Preprint page: 1038-1042 publication: Nature Physics publication_identifier: issn: - 1745-2473 - 1745-2481 publication_status: published publisher: Springer Nature quality_controlled: '1' status: public title: Harnessing electro-optic correlations in an efficient mechanical converter type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 14 year: '2018' ... --- _id: '6369' abstract: - lang: eng text: We construct a metamaterial from radio-frequency harmonic oscillators, and find two topologically distinct phases resulting from dissipation engineered into the system. These phases are distinguished by a quantized value of bulk energy transport. The impulse response of our circuit is measured and used to reconstruct the band structure and winding number of circuit eigenfunctions around a dark mode. Our results demonstrate that dissipative topological transport can occur in a wider class of physical systems than considered before. article_number: '220301' arxiv: 1 author: - first_name: Eric I. full_name: Rosenthal, Eric I. last_name: Rosenthal - first_name: Nicole K. full_name: Ehrlich, Nicole K. last_name: Ehrlich - first_name: Mark S. full_name: Rudner, Mark S. last_name: Rudner - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: K. W. full_name: Lehnert, K. W. last_name: Lehnert citation: ama: Rosenthal EI, Ehrlich NK, Rudner MS, Higginbotham AP, Lehnert KW. Topological phase transition measured in a dissipative metamaterial. Physical Review B. 2018;97(22). doi:10.1103/physrevb.97.220301 apa: Rosenthal, E. I., Ehrlich, N. K., Rudner, M. S., Higginbotham, A. P., & Lehnert, K. W. (2018). Topological phase transition measured in a dissipative metamaterial. Physical Review B. American Physical Society (APS). https://doi.org/10.1103/physrevb.97.220301 chicago: Rosenthal, Eric I., Nicole K. Ehrlich, Mark S. Rudner, Andrew P Higginbotham, and K. W. Lehnert. “Topological Phase Transition Measured in a Dissipative Metamaterial.” Physical Review B. American Physical Society (APS), 2018. https://doi.org/10.1103/physrevb.97.220301. ieee: E. I. Rosenthal, N. K. Ehrlich, M. S. Rudner, A. P. Higginbotham, and K. W. Lehnert, “Topological phase transition measured in a dissipative metamaterial,” Physical Review B, vol. 97, no. 22. American Physical Society (APS), 2018. ista: Rosenthal EI, Ehrlich NK, Rudner MS, Higginbotham AP, Lehnert KW. 2018. Topological phase transition measured in a dissipative metamaterial. Physical Review B. 97(22), 220301. mla: Rosenthal, Eric I., et al. “Topological Phase Transition Measured in a Dissipative Metamaterial.” Physical Review B, vol. 97, no. 22, 220301, American Physical Society (APS), 2018, doi:10.1103/physrevb.97.220301. short: E.I. Rosenthal, N.K. Ehrlich, M.S. Rudner, A.P. Higginbotham, K.W. Lehnert, Physical Review B 97 (2018). date_created: 2019-05-03T09:29:49Z date_published: 2018-06-04T00:00:00Z date_updated: 2021-01-12T08:07:16Z day: '04' doi: 10.1103/physrevb.97.220301 extern: '1' external_id: arxiv: - '1802.02243' intvolume: ' 97' issue: '22' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1802.02243 month: '06' oa: 1 oa_version: Preprint publication: Physical Review B publication_identifier: issn: - 2469-9950 - 2469-9969 publication_status: published publisher: American Physical Society (APS) quality_controlled: '1' status: public title: Topological phase transition measured in a dissipative metamaterial type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 97 year: '2018' ... --- _id: '93' abstract: - lang: eng text: An electro-optomechanical device capable of microwave-to-optics conversion has recently been demonstrated, with the vision of enabling optical networks of superconducting qubits. Here we present an improved converter design that uses a three-dimensional microwave cavity for coupling between the microwave transmission line and an integrated LC resonator on the converter chip. The new design simplifies the optical assembly and decouples it from the microwave part of the setup. Experimental demonstrations show that the modular device assembly allows us to flexibly tune the microwave coupling to the converter chip while maintaining small loss. We also find that electromechanical experiments are not impacted by the additional microwave cavity. Our design is compatible with a high-finesse optical cavity and will improve optical performance. article_number: '094701' arxiv: 1 author: - first_name: Tim full_name: Menke, Tim last_name: Menke - first_name: Peter full_name: Burns, Peter last_name: Burns - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: N S full_name: Kampel, N S last_name: Kampel - first_name: Robert full_name: Peterson, Robert last_name: Peterson - first_name: Katarina full_name: Cicak, Katarina last_name: Cicak - first_name: Raymond full_name: Simmonds, Raymond last_name: Simmonds - first_name: Cindy full_name: Regal, Cindy last_name: Regal - first_name: Konrad full_name: Lehnert, Konrad last_name: Lehnert citation: ama: Menke T, Burns P, Higginbotham AP, et al. Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device. Review of Scientific Instruments. 2017;88(9). doi:10.1063/1.5000973 apa: Menke, T., Burns, P., Higginbotham, A. P., Kampel, N. S., Peterson, R., Cicak, K., … Lehnert, K. (2017). Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device. Review of Scientific Instruments. American Institute of Physics. https://doi.org/10.1063/1.5000973 chicago: Menke, Tim, Peter Burns, Andrew P Higginbotham, N S Kampel, Robert Peterson, Katarina Cicak, Raymond Simmonds, Cindy Regal, and Konrad Lehnert. “Reconfigurable Re-Entrant Cavity for Wireless Coupling to an Electro-Optomechanical Device.” Review of Scientific Instruments. American Institute of Physics, 2017. https://doi.org/10.1063/1.5000973. ieee: T. Menke et al., “Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device,” Review of Scientific Instruments, vol. 88, no. 9. American Institute of Physics, 2017. ista: Menke T, Burns P, Higginbotham AP, Kampel NS, Peterson R, Cicak K, Simmonds R, Regal C, Lehnert K. 2017. Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device. Review of Scientific Instruments. 88(9), 094701. mla: Menke, Tim, et al. “Reconfigurable Re-Entrant Cavity for Wireless Coupling to an Electro-Optomechanical Device.” Review of Scientific Instruments, vol. 88, no. 9, 094701, American Institute of Physics, 2017, doi:10.1063/1.5000973. short: T. Menke, P. Burns, A.P. Higginbotham, N.S. Kampel, R. Peterson, K. Cicak, R. Simmonds, C. Regal, K. Lehnert, Review of Scientific Instruments 88 (2017). date_created: 2018-12-11T11:44:35Z date_published: 2017-09-08T00:00:00Z date_updated: 2021-01-12T08:21:59Z day: '08' doi: 10.1063/1.5000973 extern: '1' external_id: arxiv: - '1703.06470' pmid: - '28964202' intvolume: ' 88' issue: '9' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1703.06470 month: '09' oa: 1 oa_version: Preprint pmid: 1 publication: Review of Scientific Instruments publication_status: published publisher: American Institute of Physics publist_id: '7961' quality_controlled: '1' status: public title: Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 88 year: '2017' ... --- _id: '94' abstract: - lang: eng text: We introduce a method for breaking Lorentz reciprocity based upon the noncommutation of frequency conversion and delay. The method requires no magnetic materials or resonant physics, allowing for the design of scalable and broadband nonreciprocal circuits. With this approach, two types of gyrators - universal building blocks for linear, nonreciprocal circuits - are constructed. Using one of these gyrators, we create a circulator with >15 dB of isolation across the 5-9 GHz band. Our designs may be readily extended to any platform with suitable frequency conversion elements, including semiconducting devices for telecommunication or an on-chip superconducting implementation for quantum information processing. article_number: '147703' arxiv: 1 author: - first_name: Eric full_name: Rosenthal, Eric last_name: Rosenthal - first_name: Benjamin full_name: Chapman, Benjamin last_name: Chapman - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Joseph full_name: Kerckhoff, Joseph last_name: Kerckhoff - first_name: Konrad full_name: Lehnert, Konrad last_name: Lehnert citation: ama: Rosenthal E, Chapman B, Higginbotham AP, Kerckhoff J, Lehnert K. Breaking Lorentz reciprocity with frequency conversion and delay. APS Physics, Physical Review Letters. 2017;119(14). doi:10.1103/PhysRevLett.119.147703 apa: Rosenthal, E., Chapman, B., Higginbotham, A. P., Kerckhoff, J., & Lehnert, K. (2017). Breaking Lorentz reciprocity with frequency conversion and delay. APS Physics, Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.119.147703 chicago: Rosenthal, Eric, Benjamin Chapman, Andrew P Higginbotham, Joseph Kerckhoff, and Konrad Lehnert. “Breaking Lorentz Reciprocity with Frequency Conversion and Delay.” APS Physics, Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.119.147703. ieee: E. Rosenthal, B. Chapman, A. P. Higginbotham, J. Kerckhoff, and K. Lehnert, “Breaking Lorentz reciprocity with frequency conversion and delay,” APS Physics, Physical Review Letters, vol. 119, no. 14. American Physical Society, 2017. ista: Rosenthal E, Chapman B, Higginbotham AP, Kerckhoff J, Lehnert K. 2017. Breaking Lorentz reciprocity with frequency conversion and delay. APS Physics, Physical Review Letters. 119(14), 147703. mla: Rosenthal, Eric, et al. “Breaking Lorentz Reciprocity with Frequency Conversion and Delay.” APS Physics, Physical Review Letters, vol. 119, no. 14, 147703, American Physical Society, 2017, doi:10.1103/PhysRevLett.119.147703. short: E. Rosenthal, B. Chapman, A.P. Higginbotham, J. Kerckhoff, K. Lehnert, APS Physics, Physical Review Letters 119 (2017). date_created: 2018-12-11T11:44:35Z date_published: 2017-10-06T00:00:00Z date_updated: 2021-01-12T08:22:04Z day: '06' doi: 10.1103/PhysRevLett.119.147703 extern: '1' external_id: arxiv: - '1705.09548' intvolume: ' 119' issue: '14' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.09548 month: '10' oa: 1 oa_version: Submitted Version publication: APS Physics, Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '7960' quality_controlled: '1' status: public title: Breaking Lorentz reciprocity with frequency conversion and delay type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 119 year: '2017' ... --- _id: '103' abstract: - lang: eng text: We investigate effects of quasiparticle poisoning in a Majorana island with strong tunnel coupling to normal-metal leads. In addition to the main Coulomb blockade diamonds, "shadow" diamonds appear, shifted by 1e in gate voltage, consistent with transport through an excited (poisoned) state of the island. Comparison to a simple model yields an estimate of parity lifetime for the strongly coupled island (∼1 μs) and sets a bound for a weakly coupled island (>10 μs). Fluctuations in the gate-voltage spacing of Coulomb peaks at high field, reflecting Majorana hybridization, are enhanced by the reduced lever arm at strong coupling. When converted from gate voltage to energy units, fluctuations are consistent with previous measurements. acknowledgement: Research supported by Microsoft, the Danish National Research Foundation, the Lundbeck Foundation, Carlsberg Foundation, Villum Foundation, and the European Commission. article_number: '137701' arxiv: 1 author: - first_name: S M full_name: Albrecht, S M last_name: Albrecht - first_name: Esben full_name: Hansen, Esben last_name: Hansen - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Ferdinand full_name: Kuemmeth, Ferdinand last_name: Kuemmeth - first_name: Thomas full_name: Jespersen, Thomas last_name: Jespersen - first_name: Jesper full_name: Nygård, Jesper last_name: Nygård - first_name: Peter full_name: Krogstrup, Peter last_name: Krogstrup - first_name: Jeroen full_name: Danon, Jeroen last_name: Danon - first_name: Karsten full_name: Flensberg, Karsten last_name: Flensberg - first_name: Charles full_name: Marcus, Charles last_name: Marcus citation: ama: Albrecht SM, Hansen E, Higginbotham AP, et al. Transport signatures of quasiparticle poisoning in a majorana island. APS Physics, Physical Review Letters. 2017;118(13). doi:10.1103/PhysRevLett.118.137701 apa: Albrecht, S. M., Hansen, E., Higginbotham, A. P., Kuemmeth, F., Jespersen, T., Nygård, J., … Marcus, C. (2017). Transport signatures of quasiparticle poisoning in a majorana island. APS Physics, Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.137701 chicago: Albrecht, S M, Esben Hansen, Andrew P Higginbotham, Ferdinand Kuemmeth, Thomas Jespersen, Jesper Nygård, Peter Krogstrup, Jeroen Danon, Karsten Flensberg, and Charles Marcus. “Transport Signatures of Quasiparticle Poisoning in a Majorana Island.” APS Physics, Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.137701. ieee: S. M. Albrecht et al., “Transport signatures of quasiparticle poisoning in a majorana island,” APS Physics, Physical Review Letters, vol. 118, no. 13. American Physical Society, 2017. ista: Albrecht SM, Hansen E, Higginbotham AP, Kuemmeth F, Jespersen T, Nygård J, Krogstrup P, Danon J, Flensberg K, Marcus C. 2017. Transport signatures of quasiparticle poisoning in a majorana island. APS Physics, Physical Review Letters. 118(13), 137701. mla: Albrecht, S. M., et al. “Transport Signatures of Quasiparticle Poisoning in a Majorana Island.” APS Physics, Physical Review Letters, vol. 118, no. 13, 137701, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.137701. short: S.M. Albrecht, E. Hansen, A.P. Higginbotham, F. Kuemmeth, T. Jespersen, J. Nygård, P. Krogstrup, J. Danon, K. Flensberg, C. Marcus, APS Physics, Physical Review Letters 118 (2017). date_created: 2018-12-11T11:44:39Z date_published: 2017-03-31T00:00:00Z date_updated: 2021-01-12T06:47:47Z day: '31' doi: 10.1103/PhysRevLett.118.137701 extern: '1' external_id: arxiv: - '1612.05748' intvolume: ' 118' issue: '13' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1612.05748 month: '03' oa: 1 oa_version: Preprint publication: APS Physics, Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '7951' quality_controlled: '1' status: public title: Transport signatures of quasiparticle poisoning in a majorana island type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 118 year: '2017' ... --- _id: '92' abstract: - lang: eng text: 'Advanced organic nonlinear optical (NLO) materials have attracted increasing attention due to their multitude of applications in modern telecommunication devices. Arguably the most important advantage of organic NLO materials, relative to traditionally used inorganic NLO materials, is their short optical response time. Geminal amido esters with their donor-π-acceptor (D-π-A) architecture exhibit high levels of electron delocalization and substantial intramolecular charge transfer, which should endow these materials with short optical response times and large molecular (hyper)polarizabilities. In order to test this hypothesis, the linear and second-order nonlinear optical properties of five geminal amido esters, (E)-ethyl 3-(X-phenylamino)-2-(Y-phenylcarbamoyl)acrylate (1, X = 4-H, Y = 4-H; 2, X = 4-CH3, Y = 4-CH3; 3, X = 4-NO2, Y = 2,5-OCH3; 4, X = 2-Cl, Y = 2-Cl; 5, X = 4-Cl, Y = 4-Cl) were synthesized and characterized, whereby NLO structure-function relationships were established including intramolecular charge transfer characteristics, crystal field effects, and molecular first hyperpolarizabilities (β). Given the typically large errors (10-30%) associated with the determination of β coefficients, three independent methods were used: (i) density functional theory, (ii) hyper-Rayleigh scattering, and (iii) high-resolution X-ray diffraction data analysis based on multipolar modeling of electron densities at each atom. These three methods delivered consistent values of β, and based on these results, 3 should hold the most promise for NLO applications. The correlation between the molecular structure of these geminal amido esters and their linear and nonlinear optical properties thus provide molecular design guidelines for organic NLO materials; this leads to the ultimate goal of generating bespoke organic molecules to suit a given NLO device application.' acknowledgement: J.M.C. thanks the 1851 Royal Commission of the Great Exhibition for a Design Fellowship, hosted by Argonne National Laboratory where work done was supported by the DOE Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. T.-C.L acknowledges the Taiwanese Government for a Studying Abroad Scholarship. C.M.A is indebted to the EPSRC UK for a DTA Ph.D. studentship (Grants EP/J500380/1 and EP/L504920/1). Y.T. is grateful for a Cavendish-NUDT Scholarship. The Swiss-Norwegian Collaborative Research Group at the ESRF, Grenoble, France, is thanked for access to synchrotron facilities. The OPAL reactor, ANSTO, Australia, is acknowledged for access to neutron scattering facilities via a program proposal, ID 1236. J.P-M. is grateful to Skidmore College for supporting this work via a full-year sabbatical with enhancement. All authors thank the EPSRC UK National Service for Computational Chemistry Software (NSCCS) and acknowledge contributions from its staff in supporting this work. author: - first_name: Jaqueline full_name: Cole, Jaqueline last_name: Cole - first_name: Tzechia full_name: Lin, Tzechia last_name: Lin - first_name: Christopher full_name: Ashcroft, Christopher last_name: Ashcroft - first_name: Javier full_name: Pérez Moreno, Javier last_name: Pérez Moreno - first_name: Yizhou full_name: Tan, Yizhou last_name: Tan - first_name: Perumal full_name: Venkatesan, Perumal last_name: Venkatesan - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Philip full_name: Pattison, Philip last_name: Pattison - first_name: Alison full_name: Edwards, Alison last_name: Edwards - first_name: Ross full_name: Piltz, Ross last_name: Piltz - first_name: Koen full_name: Clays, Koen last_name: Clays - first_name: Andivelu full_name: Ilangovan, Andivelu last_name: Ilangovan citation: ama: Cole J, Lin T, Ashcroft C, et al. Relating the structure of geminal Amido Esters to their molecular hyperpolarizability. Journal of Physical Chemistry C. 2016;120(51):29439-29448. doi:10.1021/acs.jpcc.6b10724 apa: Cole, J., Lin, T., Ashcroft, C., Pérez Moreno, J., Tan, Y., Venkatesan, P., … Ilangovan, A. (2016). Relating the structure of geminal Amido Esters to their molecular hyperpolarizability. Journal of Physical Chemistry C. American Chemical Society. https://doi.org/10.1021/acs.jpcc.6b10724 chicago: Cole, Jaqueline, Tzechia Lin, Christopher Ashcroft, Javier Pérez Moreno, Yizhou Tan, Perumal Venkatesan, Andrew P Higginbotham, et al. “Relating the Structure of Geminal Amido Esters to Their Molecular Hyperpolarizability.” Journal of Physical Chemistry C. American Chemical Society, 2016. https://doi.org/10.1021/acs.jpcc.6b10724. ieee: J. Cole et al., “Relating the structure of geminal Amido Esters to their molecular hyperpolarizability,” Journal of Physical Chemistry C, vol. 120, no. 51. American Chemical Society, pp. 29439–29448, 2016. ista: Cole J, Lin T, Ashcroft C, Pérez Moreno J, Tan Y, Venkatesan P, Higginbotham AP, Pattison P, Edwards A, Piltz R, Clays K, Ilangovan A. 2016. Relating the structure of geminal Amido Esters to their molecular hyperpolarizability. Journal of Physical Chemistry C. 120(51), 29439–29448. mla: Cole, Jaqueline, et al. “Relating the Structure of Geminal Amido Esters to Their Molecular Hyperpolarizability.” Journal of Physical Chemistry C, vol. 120, no. 51, American Chemical Society, 2016, pp. 29439–48, doi:10.1021/acs.jpcc.6b10724. short: J. Cole, T. Lin, C. Ashcroft, J. Pérez Moreno, Y. Tan, P. Venkatesan, A.P. Higginbotham, P. Pattison, A. Edwards, R. Piltz, K. Clays, A. Ilangovan, Journal of Physical Chemistry C 120 (2016) 29439–29448. date_created: 2018-12-11T11:44:35Z date_published: 2016-12-05T00:00:00Z date_updated: 2021-01-12T08:21:55Z day: '05' doi: 10.1021/acs.jpcc.6b10724 extern: '1' intvolume: ' 120' issue: '51' language: - iso: eng month: '12' oa_version: None page: 29439 - 29448 publication: Journal of Physical Chemistry C publication_status: published publisher: American Chemical Society publist_id: '7962' quality_controlled: '1' status: public title: Relating the structure of geminal Amido Esters to their molecular hyperpolarizability type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 120 year: '2016' ... --- _id: '100' abstract: - lang: eng text: We introduce a scheme for preparation, manipulation, and read out of Majorana zero modes in semiconducting wires with mesoscopic superconducting islands. Our approach synthesizes recent advances in materials growth with tools commonly used in quantum-dot experiments, including gate control of tunnel barriers and Coulomb effects, charge sensing, and charge pumping. We outline a sequence of milestones interpolating between zero-mode detection and quantum computing that includes (1) detection of fusion rules for non-Abelian anyons using either proximal charge sensors or pumped current, (2) validation of a prototype topological qubit, and (3) demonstration of non-Abelian statistics by braiding in a branched geometry. The first two milestones require only a single wire with two islands, and additionally enable sensitive measurements of the system\'s excitation gap, quasiparticle poisoning rates, residual Majorana zero-mode splittings, and topological-qubit coherence times. These pre-braiding experiments can be adapted to other manipulation and read out schemes as well. acknowledgement: We acknowledge support from Microsoft Research, the National Science Foundation through Grant No. DMR-1341822 (J. A.); the Alfred P. Sloan Foundation (J. A.); the Caltech Institute for Quantum Information and Matter, an NSF Physics Frontiers Center with support of the Gordon and Betty Moore Foundation through Grant No. GBMF1250; the Walter Burke Institute for Theoretical Physics at Caltech; the NSERC PGSD program (D. A.); the Crafoord Foundation (M. L. and M. H.) and the Swedish Research Council (M. L.); The Danish National Research Foundation, and the Villum Foundation (C. M.); The Danish Council for Independent Research/Natural Sciences, and Danmarks Nationalbank (J. F.). Part of this work was performed at the Aspen Center for Physics, which is supported by National Science Foundation Grant No. PHY-1066293 (R. V. M.). article_number: '031016' author: - first_name: David full_name: Aasen, David last_name: Aasen - first_name: Michael full_name: Hell, Michael last_name: Hell - first_name: Ryan full_name: Mishmash, Ryan last_name: Mishmash - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Jeroen full_name: Danon, Jeroen last_name: Danon - first_name: Martin full_name: Leijnse, Martin last_name: Leijnse - first_name: Thomas full_name: Jespersen, Thomas last_name: Jespersen - first_name: Joshua full_name: Folk, Joshua last_name: Folk - first_name: Charles full_name: Marcs, Charles last_name: Marcs - first_name: Karsten full_name: Flensberg, Karsten last_name: Flensberg - first_name: Jason full_name: Alicea, Jason last_name: Alicea citation: ama: Aasen D, Hell M, Mishmash R, et al. Milestones toward Majorana-based quantum computing. Physical Review X. 2016;6(3). doi:10.1103/PhysRevX.6.031016 apa: Aasen, D., Hell, M., Mishmash, R., Higginbotham, A. P., Danon, J., Leijnse, M., … Alicea, J. (2016). Milestones toward Majorana-based quantum computing. Physical Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.6.031016 chicago: Aasen, David, Michael Hell, Ryan Mishmash, Andrew P Higginbotham, Jeroen Danon, Martin Leijnse, Thomas Jespersen, et al. “Milestones toward Majorana-Based Quantum Computing.” Physical Review X. American Physical Society, 2016. https://doi.org/10.1103/PhysRevX.6.031016. ieee: D. Aasen et al., “Milestones toward Majorana-based quantum computing,” Physical Review X, vol. 6, no. 3. American Physical Society, 2016. ista: Aasen D, Hell M, Mishmash R, Higginbotham AP, Danon J, Leijnse M, Jespersen T, Folk J, Marcs C, Flensberg K, Alicea J. 2016. Milestones toward Majorana-based quantum computing. Physical Review X. 6(3), 031016. mla: Aasen, David, et al. “Milestones toward Majorana-Based Quantum Computing.” Physical Review X, vol. 6, no. 3, 031016, American Physical Society, 2016, doi:10.1103/PhysRevX.6.031016. short: D. Aasen, M. Hell, R. Mishmash, A.P. Higginbotham, J. Danon, M. Leijnse, T. Jespersen, J. Folk, C. Marcs, K. Flensberg, J. Alicea, Physical Review X 6 (2016). date_created: 2018-12-11T11:44:37Z date_published: 2016-08-03T00:00:00Z date_updated: 2021-01-12T06:47:33Z day: '03' ddc: - '530' doi: 10.1103/PhysRevX.6.031016 extern: '1' file: - access_level: open_access content_type: application/pdf creator: kschuh date_created: 2019-05-15T14:12:31Z date_updated: 2019-05-15T14:12:31Z file_id: '6458' file_name: 2016_PhysRevX_Aasen.pdf file_size: 2142676 relation: main_file success: 1 file_date_updated: 2019-05-15T14:12:31Z has_accepted_license: '1' intvolume: ' 6' issue: '3' language: - iso: eng month: '08' oa: 1 oa_version: Published Version publication: Physical Review X publication_status: published publisher: American Physical Society publist_id: '7954' quality_controlled: '1' status: public title: Milestones toward Majorana-based quantum computing 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: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 6 year: '2016' ... --- _id: '101' abstract: - lang: eng text: Majorana zero modes are quasiparticle excitations in condensed matter systems that have been proposed as building blocks of fault-tolerant quantum computers. They are expected to exhibit non-Abelian particle statistics, in contrast to the usual statistics of fermions and bosons, enabling quantum operations to be performed by braiding isolated modes around one another. Quantum braiding operations are topologically protected insofar as these modes are pinned near zero energy, with the departure from zero expected to be exponentially small as the modes become spatially separated. Following theoretical proposals, several experiments have identified signatures of Majorana modes in nanowires with proximity-induced superconductivity and atomic chains, with small amounts of mode splitting potentially explained by hybridization of Majorana modes. Here, we use Coulomb-blockade spectroscopy in an InAs nanowire segment with epitaxial aluminium, which forms a proximity-induced superconducting Coulomb island (a â ∼ Majorana islandâ (tm)) that is isolated from normal-metal leads by tunnel barriers, to measure the splitting of near-zero-energy Majorana modes. We observe exponential suppression of energy splitting with increasing wire length. For short devices of a few hundred nanometres, sub-gap state energies oscillate as the magnetic field is varied, as is expected for hybridized Majorana modes. Splitting decreases by a factor of about ten for each half a micrometre of increased wire length. For devices longer than about one micrometre, transport in strong magnetic fields occurs through a zero-energy state that is energetically isolated from a continuum, yielding uniformly spaced Coulomb-blockade conductance peaks, consistent with teleportation via Majorana modes. Our results help to explain the trivial-to-topological transition in finite systems and to quantify the scaling of topological protection with end-mode separation. acknowledgement: This research was supported by Microsoft Project Q, the Danish National Research Foundation, the Lundbeck Foundation, the Carlsberg Foundation and the European Commission. C.M.M. acknowledges support from the Villum Foundation. arxiv: 1 author: - first_name: S M full_name: Albrecht, S M last_name: Albrecht - first_name: Andrew P full_name: Higginbotham, Andrew P id: 4AD6785A-F248-11E8-B48F-1D18A9856A87 last_name: Higginbotham orcid: 0000-0003-2607-2363 - first_name: Thomas full_name: Jespersen, Thomas last_name: Jespersen - first_name: Morten full_name: Madsen, Morten last_name: Madsen - first_name: Ferdinand full_name: Kuemmeth, Ferdinand last_name: Kuemmeth - first_name: Jesper full_name: Nygård, Jesper last_name: Nygård - first_name: Peter full_name: Krogstrup, Peter last_name: Krogstrup - first_name: Charles full_name: Marcus, Charles last_name: Marcus citation: ama: Albrecht SM, Higginbotham AP, Jespersen T, et al. Exponential protection of zero modes in Majorana islands. Nature. 2016;531(7593):206-209. doi:10.1038/nature17162 apa: Albrecht, S. M., Higginbotham, A. P., Jespersen, T., Madsen, M., Kuemmeth, F., Nygård, J., … Marcus, C. (2016). Exponential protection of zero modes in Majorana islands. Nature. Nature Publishing Group. https://doi.org/10.1038/nature17162 chicago: Albrecht, S M, Andrew P Higginbotham, Thomas Jespersen, Morten Madsen, Ferdinand Kuemmeth, Jesper Nygård, Peter Krogstrup, and Charles Marcus. “Exponential Protection of Zero Modes in Majorana Islands.” Nature. Nature Publishing Group, 2016. https://doi.org/10.1038/nature17162. ieee: S. M. Albrecht et al., “Exponential protection of zero modes in Majorana islands,” Nature, vol. 531, no. 7593. Nature Publishing Group, pp. 206–209, 2016. ista: Albrecht SM, Higginbotham AP, Jespersen T, Madsen M, Kuemmeth F, Nygård J, Krogstrup P, Marcus C. 2016. Exponential protection of zero modes in Majorana islands. Nature. 531(7593), 206–209. mla: Albrecht, S. M., et al. “Exponential Protection of Zero Modes in Majorana Islands.” Nature, vol. 531, no. 7593, Nature Publishing Group, 2016, pp. 206–09, doi:10.1038/nature17162. short: S.M. Albrecht, A.P. Higginbotham, T. Jespersen, M. Madsen, F. Kuemmeth, J. Nygård, P. Krogstrup, C. Marcus, Nature 531 (2016) 206–209. date_created: 2018-12-11T11:44:38Z date_published: 2016-03-10T00:00:00Z date_updated: 2021-01-12T06:47:37Z day: '10' doi: 10.1038/nature17162 extern: '1' external_id: arxiv: - '1603.03217' intvolume: ' 531' issue: '7593' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1603.03217 month: '03' oa: 1 oa_version: Submitted Version page: 206 - 209 publication: Nature publication_status: published publisher: Nature Publishing Group publist_id: '7953' quality_controlled: '1' status: public title: Exponential protection of zero modes in Majorana islands type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 531 year: '2016' ...