[{"article_type":"original","publisher":"American Physical Society","quality_controlled":"1","ec_funded":1,"intvolume":"        20","title":"Compact vacuum-gap transmon qubits: Selective and sensitive probes for superconductor surface losses","date_created":"2023-11-12T23:00:55Z","article_processing_charge":"No","department":[{"_id":"JoFi"}],"publication_status":"published","issue":"4","author":[{"first_name":"Martin","last_name":"Zemlicka","full_name":"Zemlicka, Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87"},{"id":"2C21D6E8-F248-11E8-B48F-1D18A9856A87","full_name":"Redchenko, Elena","last_name":"Redchenko","first_name":"Elena"},{"id":"3F920B30-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-3415-4628","full_name":"Peruzzo, Matilda","first_name":"Matilda","last_name":"Peruzzo"},{"id":"2AED110C-F248-11E8-B48F-1D18A9856A87","first_name":"Farid","last_name":"Hassani","orcid":"0000-0001-6937-5773","full_name":"Hassani, Farid"},{"id":"42F71B44-F248-11E8-B48F-1D18A9856A87","last_name":"Trioni","first_name":"Andrea","full_name":"Trioni, Andrea"},{"last_name":"Barzanjeh","first_name":"Shabir","full_name":"Barzanjeh, Shabir","orcid":"0000-0003-0415-1423","id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X"}],"scopus_import":"1","_id":"14517","volume":20,"acknowledgement":"This work was supported by the Austrian Science Fund (FWF) through BeyondC (F7105), the European Research Council under Grant Agreement No. 758053 (ERC StG QUNNECT) and a NOMIS foundation research grant. M.Z. was the recipient of a SAIA scholarship, E.R. of\r\na DOC fellowship of the Austrian Academy of Sciences, and M.P. of a Pöttinger scholarship at IST Austria. S.B. acknowledges support from Marie Skłodowska Curie Program No. 707438 (MSC-IF SUPEREOM). J.M.F. acknowledges support from the Horizon Europe Program HORIZON-CL4-2022-QUANTUM-01-SGA via Project No. 101113946 OpenSuperQPlus100 and the ISTA Nanofabrication Facility.","abstract":[{"lang":"eng","text":"State-of-the-art transmon qubits rely on large capacitors, which systematically improve their coherence due to reduced surface-loss participation. However, this approach increases both the footprint and the parasitic cross-coupling and is ultimately limited by radiation losses—a potential roadblock for scaling up quantum processors to millions of qubits. In this work we present transmon qubits with sizes as low as 36 × 39 µm2 with  100-nm-wide vacuum-gap capacitors that are micromachined from commercial silicon-on-insulator wafers and shadow evaporated with aluminum. We achieve a vacuum participation ratio up to 99.6% in an in-plane design that is compatible with standard coplanar circuits. Qubit relaxationtime measurements for small gaps with high zero-point electric field variance of up to 22 V/m reveal a double exponential decay indicating comparably strong qubit interaction with long-lived two-level systems. The exceptionally high selectivity of up to 20 dB to the superconductor-vacuum interface allows us to precisely back out the sub-single-photon dielectric loss tangent of aluminum oxide previously exposed to ambient conditions. In terms of future scaling potential, we achieve a ratio of qubit quality factor to a footprint area equal to 20 µm−2, which is comparable with the highest T1 devices relying on larger geometries, a value that could improve substantially for lower surface-loss superconductors. "}],"day":"20","arxiv":1,"doi":"10.1103/PhysRevApplied.20.044054","external_id":{"arxiv":["2206.14104"]},"year":"2023","citation":{"ista":"Zemlicka M, Redchenko E, Peruzzo M, Hassani F, Trioni A, Barzanjeh S, Fink JM. 2023. Compact vacuum-gap transmon qubits: Selective and sensitive probes for superconductor surface losses. Physical Review Applied. 20(4), 044054.","mla":"Zemlicka, Martin, et al. “Compact Vacuum-Gap Transmon Qubits: Selective and Sensitive Probes for Superconductor Surface Losses.” <i>Physical Review Applied</i>, vol. 20, no. 4, 044054, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevApplied.20.044054\">10.1103/PhysRevApplied.20.044054</a>.","short":"M. Zemlicka, E. Redchenko, M. Peruzzo, F. Hassani, A. Trioni, S. Barzanjeh, J.M. Fink, Physical Review Applied 20 (2023).","ieee":"M. Zemlicka <i>et al.</i>, “Compact vacuum-gap transmon qubits: Selective and sensitive probes for superconductor surface losses,” <i>Physical Review Applied</i>, vol. 20, no. 4. American Physical Society, 2023.","chicago":"Zemlicka, Martin, Elena Redchenko, Matilda Peruzzo, Farid Hassani, Andrea Trioni, Shabir Barzanjeh, and Johannes M Fink. “Compact Vacuum-Gap Transmon Qubits: Selective and Sensitive Probes for Superconductor Surface Losses.” <i>Physical Review Applied</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevApplied.20.044054\">https://doi.org/10.1103/PhysRevApplied.20.044054</a>.","ama":"Zemlicka M, Redchenko E, Peruzzo M, et al. Compact vacuum-gap transmon qubits: Selective and sensitive probes for superconductor surface losses. <i>Physical Review Applied</i>. 2023;20(4). doi:<a href=\"https://doi.org/10.1103/PhysRevApplied.20.044054\">10.1103/PhysRevApplied.20.044054</a>","apa":"Zemlicka, M., Redchenko, E., Peruzzo, M., Hassani, F., Trioni, A., Barzanjeh, S., &#38; Fink, J. M. (2023). Compact vacuum-gap transmon qubits: Selective and sensitive probes for superconductor surface losses. <i>Physical Review Applied</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevApplied.20.044054\">https://doi.org/10.1103/PhysRevApplied.20.044054</a>"},"date_updated":"2024-08-07T07:11:55Z","language":[{"iso":"eng"}],"article_number":"044054","month":"10","project":[{"grant_number":"F07105","name":"Integrating superconducting quantum circuits","call_identifier":"FWF","_id":"26927A52-B435-11E9-9278-68D0E5697425"},{"name":"A Fiber Optic Transceiver for Superconducting Qubits","grant_number":"758053","call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425"},{"name":"Protected states of quantum matter","_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2"},{"_id":"258047B6-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination with cavity Optomechanics SUPEREOM","grant_number":"707438"},{"_id":"bdb7cfc1-d553-11ed-ba76-d2eaab167738","grant_number":"101080139","name":"Open Superconducting Quantum Computers (OpenSuperQPlus)"}],"acknowledged_ssus":[{"_id":"NanoFab"}],"oa_version":"Preprint","publication":"Physical Review Applied","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","related_material":{"record":[{"status":"public","relation":"research_data","id":"14520"}]},"status":"public","main_file_link":[{"url":"https://arxiv.org/abs/2206.14104","open_access":"1"}],"oa":1,"publication_identifier":{"eissn":["2331-7019"]},"type":"journal_article","date_published":"2023-10-20T00:00:00Z"},{"month":"05","oa_version":"Preprint","project":[{"name":"A Fiber Optic Transceiver for Superconducting Qubits","grant_number":"758053","_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"grant_number":"899354","name":"Quantum Local Area Networks with Superconducting Qubits","_id":"9B868D20-BA93-11EA-9121-9846C619BF3A","call_identifier":"H2020"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"},{"_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"F07105","name":"Integrating superconducting quantum circuits"},{"call_identifier":"H2020","_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","grant_number":"862644","name":"Quantum readout techniques and technologies"},{"name":"Coherent on-chip conversion of superconducting qubit signals from microwaves to optical frequencies","_id":"2671EB66-B435-11E9-9278-68D0E5697425"}],"language":[{"iso":"eng"}],"keyword":["Multidisciplinary"],"date_published":"2023-05-18T00:00:00Z","type":"dissertation","oa":1,"publication_identifier":{"issn":["0036-8075"],"eissn":["1095-9203"]},"status":"public","related_material":{"link":[{"url":"https://ista.ac.at/en/news/wiring-up-quantum-circuits-with-light/","description":"News on ISTA Website","relation":"press_release"}],"record":[{"relation":"research_data","id":"13122","status":"public"}]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2301.03315"}],"author":[{"full_name":"Sahu, Rishabh","orcid":"0000-0001-6264-2162","last_name":"Sahu","first_name":"Rishabh","id":"47D26E34-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Qiu","first_name":"Liu","full_name":"Qiu, Liu","orcid":"0000-0003-4345-4267","id":"45e99c0d-1eb1-11eb-9b96-ed8ab2983cac"},{"orcid":"0000-0001-9868-2166","full_name":"Hease, William J","first_name":"William J","last_name":"Hease","id":"29705398-F248-11E8-B48F-1D18A9856A87"},{"id":"3770C838-F248-11E8-B48F-1D18A9856A87","last_name":"Arnold","first_name":"Georg M","full_name":"Arnold, Georg M","orcid":"0000-0003-1397-7876"},{"full_name":"Minoguchi, Y.","last_name":"Minoguchi","first_name":"Y."},{"full_name":"Rabl, P.","first_name":"P.","last_name":"Rabl"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M","first_name":"Johannes M","last_name":"Fink"}],"_id":"13106","title":"Entangling microwaves with light","intvolume":"       380","publication_status":"published","date_created":"2023-05-31T11:39:24Z","department":[{"_id":"JoFi"}],"article_processing_charge":"No","page":"718-721","ec_funded":1,"publisher":"American Association for the Advancement of Science","isi":1,"external_id":{"isi":["000996515200004"],"arxiv":["2301.03315"]},"date_updated":"2025-07-15T09:17:40Z","citation":{"short":"R. Sahu, L. Qiu, W.J. Hease, G.M. Arnold, Y. Minoguchi, P. Rabl, J.M. Fink, Entangling Microwaves with Light, American Association for the Advancement of Science, 2023.","mla":"Sahu, Rishabh, et al. <i>Entangling Microwaves with Light</i>. Vol. 380, American Association for the Advancement of Science, 2023, pp. 718–21, doi:<a href=\"https://doi.org/10.1126/science.adg3812\">10.1126/science.adg3812</a>.","ista":"Sahu R, Qiu L, Hease WJ, Arnold GM, Minoguchi Y, Rabl P, Fink JM. 2023. Entangling microwaves with light. American Association for the Advancement of Science.","ama":"Sahu R, Qiu L, Hease WJ, et al. Entangling microwaves with light. 2023;380:718-721. doi:<a href=\"https://doi.org/10.1126/science.adg3812\">10.1126/science.adg3812</a>","apa":"Sahu, R., Qiu, L., Hease, W. J., Arnold, G. M., Minoguchi, Y., Rabl, P., &#38; Fink, J. M. (2023). <i>Entangling microwaves with light</i>. American Association for the Advancement of Science. <a href=\"https://doi.org/10.1126/science.adg3812\">https://doi.org/10.1126/science.adg3812</a>","ieee":"R. Sahu <i>et al.</i>, “Entangling microwaves with light,” American Association for the Advancement of Science, 2023.","chicago":"Sahu, Rishabh, Liu Qiu, William J Hease, Georg M Arnold, Y. Minoguchi, P. Rabl, and Johannes M Fink. “Entangling Microwaves with Light.” American Association for the Advancement of Science, 2023. <a href=\"https://doi.org/10.1126/science.adg3812\">https://doi.org/10.1126/science.adg3812</a>."},"year":"2023","abstract":[{"text":"Quantum entanglement is a key resource in currently developed quantum technologies. Sharing this fragile property between superconducting microwave circuits and optical or atomic systems would enable new functionalities, but this has been hindered by an energy scale mismatch of >104 and the resulting mutually imposed loss and noise. In this work, we created and verified entanglement between microwave and optical fields in a millikelvin environment. Using an optically pulsed superconducting electro-optical device, we show entanglement between propagating microwave and optical fields in the continuous variable domain. This achievement not only paves the way for entanglement between superconducting circuits and telecom wavelength light, but also has wide-ranging implications for hybrid quantum networks in the context of modularization, scaling, sensing, and cross-platform verification.","lang":"eng"}],"degree_awarded":"PhD","arxiv":1,"doi":"10.1126/science.adg3812","day":"18","acknowledgement":"This work was supported by the European Research Council (grant no. 758053, ERC StG QUNNECT) and the European Union’s Horizon 2020 Research and Innovation Program (grant no. 899354, FETopen SuperQuLAN). L.Q. acknowledges generous support from the ISTFELLOW program. W.H. is the recipient of an ISTplus postdoctoral fellowship with funding from the European Union’s Horizon 2020 Research and Innovation Program (Marie Sklodowska-Curie grant no. 754411). G.A. is the recipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria. J.M.F. acknowledges support from the Austrian Science Fund (FWF) through BeyondC (grant no. F7105) and the European Union’s Horizon 2020 Research and Innovation Program (grant no. 862644, FETopen QUARTET).","volume":380},{"license":"https://creativecommons.org/licenses/by/4.0/","scopus_import":"1","_id":"13117","author":[{"full_name":"Redchenko, Elena","last_name":"Redchenko","first_name":"Elena","id":"2C21D6E8-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Poshakinskiy, Alexander V.","last_name":"Poshakinskiy","first_name":"Alexander V."},{"id":"2E6D040E-F248-11E8-B48F-1D18A9856A87","first_name":"Riya","last_name":"Sett","full_name":"Sett, Riya"},{"last_name":"Zemlicka","first_name":"Martin","full_name":"Zemlicka, Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Poddubny, Alexander N.","last_name":"Poddubny","first_name":"Alexander N."},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M"}],"date_created":"2023-06-04T22:01:02Z","department":[{"_id":"JoFi"}],"article_processing_charge":"No","publication_status":"published","intvolume":"        14","title":"Tunable directional photon scattering from a pair of superconducting qubits","ec_funded":1,"quality_controlled":"1","file_date_updated":"2023-06-06T07:31:20Z","publisher":"Springer Nature","article_type":"original","year":"2023","citation":{"ieee":"E. Redchenko, A. V. Poshakinskiy, R. Sett, M. Zemlicka, A. N. Poddubny, and J. M. Fink, “Tunable directional photon scattering from a pair of superconducting qubits,” <i>Nature Communications</i>, vol. 14. Springer Nature, 2023.","chicago":"Redchenko, Elena, Alexander V. Poshakinskiy, Riya Sett, Martin Zemlicka, Alexander N. Poddubny, and Johannes M Fink. “Tunable Directional Photon Scattering from a Pair of Superconducting Qubits.” <i>Nature Communications</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s41467-023-38761-6\">https://doi.org/10.1038/s41467-023-38761-6</a>.","apa":"Redchenko, E., Poshakinskiy, A. V., Sett, R., Zemlicka, M., Poddubny, A. N., &#38; Fink, J. M. (2023). Tunable directional photon scattering from a pair of superconducting qubits. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-023-38761-6\">https://doi.org/10.1038/s41467-023-38761-6</a>","ama":"Redchenko E, Poshakinskiy AV, Sett R, Zemlicka M, Poddubny AN, Fink JM. Tunable directional photon scattering from a pair of superconducting qubits. <i>Nature Communications</i>. 2023;14. doi:<a href=\"https://doi.org/10.1038/s41467-023-38761-6\">10.1038/s41467-023-38761-6</a>","ista":"Redchenko E, Poshakinskiy AV, Sett R, Zemlicka M, Poddubny AN, Fink JM. 2023. Tunable directional photon scattering from a pair of superconducting qubits. Nature Communications. 14, 2998.","mla":"Redchenko, Elena, et al. “Tunable Directional Photon Scattering from a Pair of Superconducting Qubits.” <i>Nature Communications</i>, vol. 14, 2998, Springer Nature, 2023, doi:<a href=\"https://doi.org/10.1038/s41467-023-38761-6\">10.1038/s41467-023-38761-6</a>.","short":"E. Redchenko, A.V. Poshakinskiy, R. Sett, M. Zemlicka, A.N. Poddubny, J.M. Fink, Nature Communications 14 (2023)."},"date_updated":"2024-08-07T07:11:50Z","external_id":{"arxiv":["2205.03293"],"isi":["001001099700002"]},"isi":1,"day":"24","arxiv":1,"doi":"10.1038/s41467-023-38761-6","abstract":[{"text":"The ability to control the direction of scattered light is crucial to provide flexibility and scalability for a wide range of on-chip applications, such as integrated photonics, quantum information processing, and nonlinear optics. Tunable directionality can be achieved by applying external magnetic fields that modify optical selection rules, by using nonlinear effects, or interactions with vibrations. However, these approaches are less suitable to control microwave photon propagation inside integrated superconducting quantum devices. Here, we demonstrate on-demand tunable directional scattering based on two periodically modulated transmon qubits coupled to a transmission line at a fixed distance. By changing the relative phase between the modulation tones, we realize unidirectional forward or backward photon scattering. Such an in-situ switchable mirror represents a versatile tool for intra- and inter-chip microwave photonic processors. In the future, a lattice of qubits can be used to realize topological circuits that exhibit strong nonreciprocity or chirality.","lang":"eng"}],"volume":14,"acknowledgement":"The authors thank W.D. Oliver for discussions, L. Drmic and P. Zielinski for software development, and the MIBA workshop and the IST nanofabrication facility for technical support. This work was supported by the Austrian Science Fund (FWF) through BeyondC (F7105) and IST Austria. E.R. is the recipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria. J.M.F. and M.Z. acknowledge support from the European Research Council under grant agreement No 758053 (ERC StG QUNNECT) and a NOMIS foundation research grant. The work of A.N.P. and A.V.P. has been supported by the Russian Science Foundation under the grant No 20-12-00194.","ddc":["530"],"has_accepted_license":"1","publication":"Nature Communications","project":[{"name":"Integrating superconducting quantum circuits","grant_number":"F07105","_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"grant_number":"758053","name":"A Fiber Optic Transceiver for Superconducting Qubits","call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425"},{"_id":"26B354CA-B435-11E9-9278-68D0E5697425","name":"Controllable Collective States of Superconducting Qubit Ensembles"},{"name":"Protected states of quantum matter","_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2"}],"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"oa_version":"Published Version","article_number":"2998","month":"05","language":[{"iso":"eng"}],"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"type":"journal_article","date_published":"2023-05-24T00:00:00Z","publication_identifier":{"eissn":["2041-1723"]},"oa":1,"file":[{"creator":"dernst","file_id":"13123","relation":"main_file","success":1,"access_level":"open_access","content_type":"application/pdf","file_name":"2023_NaturePhysics_Redchenko.pdf","date_updated":"2023-06-06T07:31:20Z","checksum":"a857df40f0882859c48a1ff1e2001ec2","file_size":1654389,"date_created":"2023-06-06T07:31:20Z"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","related_material":{"record":[{"id":"13124","relation":"research_data","status":"public"}]}},{"publication":"Nature Communications","has_accepted_license":"1","month":"07","article_number":"3968","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"oa_version":"Published Version","project":[{"grant_number":"F07105","name":"Integrating superconducting quantum circuits","call_identifier":"FWF","_id":"26927A52-B435-11E9-9278-68D0E5697425"},{"name":"Hybrid Semiconductor - Superconductor Quantum Devices","_id":"2622978C-B435-11E9-9278-68D0E5697425"}],"language":[{"iso":"eng"}],"date_published":"2023-07-05T00:00:00Z","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"oa":1,"publication_identifier":{"eissn":["2041-1723"]},"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file":[{"relation":"main_file","success":1,"access_level":"open_access","file_id":"13248","creator":"dernst","date_created":"2023-07-18T08:43:07Z","file_size":2899592,"checksum":"a85773b5fe23516f60f7d5d31b55c200","date_updated":"2023-07-18T08:43:07Z","content_type":"application/pdf","file_name":"2023_NatureComm_Hassani.pdf"}],"author":[{"id":"2AED110C-F248-11E8-B48F-1D18A9856A87","first_name":"Farid","last_name":"Hassani","orcid":"0000-0001-6937-5773","full_name":"Hassani, Farid"},{"full_name":"Peruzzo, Matilda","orcid":"0000-0002-3415-4628","last_name":"Peruzzo","first_name":"Matilda","id":"3F920B30-F248-11E8-B48F-1D18A9856A87"},{"id":"84b9700b-15b2-11ec-abd3-831089e67615","first_name":"Lucky","last_name":"Kapoor","full_name":"Kapoor, Lucky"},{"first_name":"Andrea","last_name":"Trioni","full_name":"Trioni, Andrea","id":"42F71B44-F248-11E8-B48F-1D18A9856A87"},{"id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87","full_name":"Zemlicka, Martin","last_name":"Zemlicka","first_name":"Martin"},{"orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M","first_name":"Johannes M","last_name":"Fink","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"}],"_id":"13227","pmid":1,"scopus_import":"1","title":"Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours","intvolume":"        14","publication_status":"published","date_created":"2023-07-16T22:01:08Z","article_processing_charge":"No","department":[{"_id":"JoFi"}],"file_date_updated":"2023-07-18T08:43:07Z","quality_controlled":"1","article_type":"original","publisher":"Springer Nature","isi":1,"external_id":{"pmid":["37407570"],"isi":["001024729900009"]},"date_updated":"2023-12-13T11:32:25Z","year":"2023","citation":{"short":"F. Hassani, M. Peruzzo, L. Kapoor, A. Trioni, M. Zemlicka, J.M. Fink, Nature Communications 14 (2023).","mla":"Hassani, Farid, et al. “Inductively Shunted Transmons Exhibit Noise Insensitive Plasmon States and a Fluxon Decay Exceeding 3 Hours.” <i>Nature Communications</i>, vol. 14, 3968, Springer Nature, 2023, doi:<a href=\"https://doi.org/10.1038/s41467-023-39656-2\">10.1038/s41467-023-39656-2</a>.","ista":"Hassani F, Peruzzo M, Kapoor L, Trioni A, Zemlicka M, Fink JM. 2023. Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours. Nature Communications. 14, 3968.","ama":"Hassani F, Peruzzo M, Kapoor L, Trioni A, Zemlicka M, Fink JM. Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours. <i>Nature Communications</i>. 2023;14. doi:<a href=\"https://doi.org/10.1038/s41467-023-39656-2\">10.1038/s41467-023-39656-2</a>","apa":"Hassani, F., Peruzzo, M., Kapoor, L., Trioni, A., Zemlicka, M., &#38; Fink, J. M. (2023). Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-023-39656-2\">https://doi.org/10.1038/s41467-023-39656-2</a>","chicago":"Hassani, Farid, Matilda Peruzzo, Lucky Kapoor, Andrea Trioni, Martin Zemlicka, and Johannes M Fink. “Inductively Shunted Transmons Exhibit Noise Insensitive Plasmon States and a Fluxon Decay Exceeding 3 Hours.” <i>Nature Communications</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s41467-023-39656-2\">https://doi.org/10.1038/s41467-023-39656-2</a>.","ieee":"F. Hassani, M. Peruzzo, L. Kapoor, A. Trioni, M. Zemlicka, and J. M. Fink, “Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours,” <i>Nature Communications</i>, vol. 14. Springer Nature, 2023."},"abstract":[{"text":"Currently available quantum processors are dominated by noise, which severely limits their applicability and motivates the search for new physical qubit encodings. In this work, we introduce the inductively shunted transmon, a weakly flux-tunable superconducting qubit that offers charge offset protection for all levels and a 20-fold reduction in flux dispersion compared to the state-of-the-art resulting in a constant coherence over a full flux quantum. The parabolic confinement provided by the inductive shunt as well as the linearity of the geometric superinductor facilitates a high-power readout that resolves quantum jumps with a fidelity and QND-ness of >90% and without the need for a Josephson parametric amplifier. Moreover, the device reveals quantum tunneling physics between the two prepared fluxon ground states with a measured average decay time of up to 3.5 h. In the future, fast time-domain control of the transition matrix elements could offer a new path forward to also achieve full qubit control in the decay-protected fluxon basis.","lang":"eng"}],"doi":"10.1038/s41467-023-39656-2","day":"05","ddc":["530"],"volume":14,"acknowledgement":"The authors thank J. Koch for discussions and support with the scQubits python package, I. Rozhansky and A. Poddubny for important insights into photon-assisted tunneling, S. Barzanjeh and G. Arnold for theory, E. Redchenko, S. Pepic, the MIBA workshop and the IST nanofabrication facility for technical contributions, as well as L. Drmic, P. Zielinski and R. Sett for software development. We acknowledge the prompt support of Quantum Machines to implement active state preparation with their OPX+. This work was supported by a NOMIS foundation research grant (J.F.), the Austrian Science Fund (FWF) through BeyondC F7105 (J.F.) and IST Austria."},{"publication_identifier":{"eissn":["20411723"]},"oa":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"type":"journal_article","date_published":"2022-03-11T00:00:00Z","file":[{"content_type":"application/pdf","file_name":"2022_NatureCommunications_Sahu.pdf","date_updated":"2022-03-28T08:02:12Z","file_size":1167492,"checksum":"7c5176db7b8e2ed18a4e0c5aca70a72c","date_created":"2022-03-28T08:02:12Z","creator":"dernst","file_id":"10929","access_level":"open_access","relation":"main_file","success":1}],"status":"public","related_material":{"record":[{"relation":"dissertation_contains","id":"12900","status":"public"},{"status":"public","relation":"dissertation_contains","id":"13175"}]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","project":[{"call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425","grant_number":"758053","name":"A Fiber Optic Transceiver for Superconducting Qubits"},{"name":"Quantum Local Area Networks with Superconducting Qubits","grant_number":"899354","_id":"9B868D20-BA93-11EA-9121-9846C619BF3A","call_identifier":"H2020"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"},{"grant_number":"F07105","name":"Integrating superconducting quantum circuits","_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"H2020","_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","grant_number":"862644","name":"Quantum readout techniques and technologies"}],"acknowledged_ssus":[{"_id":"M-Shop"}],"oa_version":"Published Version","article_number":"1276","month":"03","has_accepted_license":"1","publication":"Nature Communications","language":[{"iso":"eng"}],"day":"11","doi":"10.1038/s41467-022-28924-2","arxiv":1,"abstract":[{"lang":"eng","text":"Solid-state microwave systems offer strong interactions for fast quantum logic and sensing but photons at telecom wavelength are the ideal choice for high-density low-loss quantum interconnects. A general-purpose interface that can make use of single photon effects requires < 1 input noise quanta, which has remained elusive due to either low efficiency or pump induced heating. Here we demonstrate coherent electro-optic modulation on nanosecond-timescales with only 0.16+0.02−0.01 microwave input noise photons with a total bidirectional transduction efficiency of 8.7% (or up to 15% with 0.41+0.02−0.02), as required for near-term heralded quantum network protocols. The use of short and high-power optical pump pulses also enables near-unity cooperativity of the electro-optic interaction leading to an internal pure conversion efficiency of up to 99.5%. Together with the low mode occupancy this provides evidence for electro-optic laser cooling and vacuum amplification as predicted a decade ago."}],"year":"2022","citation":{"ieee":"R. Sahu, W. J. Hease, A. R. Rueda Sanchez, G. M. Arnold, L. Qiu, and J. M. Fink, “Quantum-enabled operation of a microwave-optical interface,” <i>Nature Communications</i>, vol. 13. Springer Nature, 2022.","chicago":"Sahu, Rishabh, William J Hease, Alfredo R Rueda Sanchez, Georg M Arnold, Liu Qiu, and Johannes M Fink. “Quantum-Enabled Operation of a Microwave-Optical Interface.” <i>Nature Communications</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41467-022-28924-2\">https://doi.org/10.1038/s41467-022-28924-2</a>.","ama":"Sahu R, Hease WJ, Rueda Sanchez AR, Arnold GM, Qiu L, Fink JM. Quantum-enabled operation of a microwave-optical interface. <i>Nature Communications</i>. 2022;13. doi:<a href=\"https://doi.org/10.1038/s41467-022-28924-2\">10.1038/s41467-022-28924-2</a>","apa":"Sahu, R., Hease, W. J., Rueda Sanchez, A. R., Arnold, G. M., Qiu, L., &#38; Fink, J. M. (2022). Quantum-enabled operation of a microwave-optical interface. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-022-28924-2\">https://doi.org/10.1038/s41467-022-28924-2</a>","ista":"Sahu R, Hease WJ, Rueda Sanchez AR, Arnold GM, Qiu L, Fink JM. 2022. Quantum-enabled operation of a microwave-optical interface. Nature Communications. 13, 1276.","short":"R. Sahu, W.J. Hease, A.R. Rueda Sanchez, G.M. Arnold, L. Qiu, J.M. Fink, Nature Communications 13 (2022).","mla":"Sahu, Rishabh, et al. “Quantum-Enabled Operation of a Microwave-Optical Interface.” <i>Nature Communications</i>, vol. 13, 1276, Springer Nature, 2022, doi:<a href=\"https://doi.org/10.1038/s41467-022-28924-2\">10.1038/s41467-022-28924-2</a>."},"date_updated":"2024-10-29T09:11:06Z","external_id":{"isi":["000767892300013"],"arxiv":["2107.08303"]},"isi":1,"volume":13,"acknowledgement":"The authors thank S. Wald and F. Diorico for their help with optical filtering, O. Hosten\r\nand M. Aspelmeyer for equipment, H.G.L. Schwefel for materials and discussions, L.\r\nDrmic and P. Zielinski for software support, and the MIBA workshop at IST Austria for\r\nmachining the microwave cavity. This work was supported by the European Research\r\nCouncil under grant agreement no. 758053 (ERC StG QUNNECT) and the European\r\nUnion’s Horizon 2020 research and innovation program under grant agreement no.\r\n899354 (FETopen SuperQuLAN). W.H. is the recipient of an ISTplus postdoctoral fellowship\r\nwith funding from the European Union’s Horizon 2020 research and innovation\r\nprogram under the Marie Skłodowska-Curie grant agreement no. 754411. G.A. is the\r\nrecipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria. J.M.F.\r\nacknowledges support from the Austrian Science Fund (FWF) through BeyondC (F7105)\r\nand the European Union’s Horizon 2020 research and innovation programs under grant\r\nagreement no. 862644 (FETopen QUARTET).","ddc":["530"],"department":[{"_id":"JoFi"}],"date_created":"2022-03-27T22:01:45Z","article_processing_charge":"No","publication_status":"published","intvolume":"        13","title":"Quantum-enabled operation of a microwave-optical interface","scopus_import":"1","_id":"10924","author":[{"last_name":"Sahu","first_name":"Rishabh","full_name":"Sahu, Rishabh","orcid":"0000-0001-6264-2162","id":"47D26E34-F248-11E8-B48F-1D18A9856A87"},{"first_name":"William J","last_name":"Hease","orcid":"0000-0001-9868-2166","full_name":"Hease, William J","id":"29705398-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Alfredo R","last_name":"Rueda Sanchez","orcid":"0000-0001-6249-5860","full_name":"Rueda Sanchez, Alfredo R","id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0003-1397-7876","full_name":"Arnold, Georg M","first_name":"Georg M","last_name":"Arnold","id":"3770C838-F248-11E8-B48F-1D18A9856A87"},{"id":"45e99c0d-1eb1-11eb-9b96-ed8ab2983cac","orcid":"0000-0003-4345-4267","full_name":"Qiu, Liu","first_name":"Liu","last_name":"Qiu"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M"}],"publisher":"Springer Nature","article_type":"original","quality_controlled":"1","ec_funded":1,"file_date_updated":"2022-03-28T08:02:12Z"},{"keyword":["quantum physics","mesoscale and nanoscale physics"],"language":[{"iso":"eng"}],"has_accepted_license":"1","publication":"PRX Quantum","project":[{"grant_number":"F07105","name":"Integrating superconducting quantum circuits","_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","grant_number":"665385","name":"International IST Doctoral Program"},{"name":"Hybrid Semiconductor - Superconductor Quantum Devices","_id":"2622978C-B435-11E9-9278-68D0E5697425"}],"oa_version":"Published Version","acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"month":"11","file":[{"creator":"cchlebak","file_id":"10641","success":1,"access_level":"open_access","relation":"main_file","file_name":"2021_PRXQuantum_Peruzzo.pdf","content_type":"application/pdf","date_updated":"2022-01-18T11:29:33Z","file_size":4247422,"checksum":"36eb41ea43d8ca22b0efab12419e4eb2","date_created":"2022-01-18T11:29:33Z"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","related_material":{"record":[{"relation":"research_data","id":"13057","status":"public"},{"id":"9920","relation":"dissertation_contains","status":"public"}]},"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"type":"journal_article","date_published":"2021-11-24T00:00:00Z","publication_identifier":{"eissn":["2691-3399"]},"oa":1,"quality_controlled":"1","ec_funded":1,"page":"040341","file_date_updated":"2022-01-18T11:29:33Z","publisher":"American Physical Society","article_type":"original","scopus_import":"1","_id":"9928","issue":"4","author":[{"last_name":"Peruzzo","first_name":"Matilda","full_name":"Peruzzo, Matilda","orcid":"0000-0002-3415-4628","id":"3F920B30-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Hassani, Farid","orcid":"0000-0001-6937-5773","last_name":"Hassani","first_name":"Farid","id":"2AED110C-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Gregory","last_name":"Szep","full_name":"Szep, Gregory"},{"last_name":"Trioni","first_name":"Andrea","full_name":"Trioni, Andrea","id":"42F71B44-F248-11E8-B48F-1D18A9856A87"},{"id":"2C21D6E8-F248-11E8-B48F-1D18A9856A87","last_name":"Redchenko","first_name":"Elena","full_name":"Redchenko, Elena"},{"first_name":"Martin","last_name":"Zemlicka","full_name":"Zemlicka, Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"}],"department":[{"_id":"JoFi"},{"_id":"NanoFab"},{"_id":"M-Shop"}],"date_created":"2021-08-17T08:14:18Z","article_processing_charge":"No","publication_status":"published","intvolume":"         2","title":"Geometric superinductance qubits: Controlling phase delocalization across a single Josephson junction","acknowledgement":"We thank W. Hughes for analytic and numerical modeling during the early stages of this work, J. Koch for discussions and support with the scqubits package, R. Sett, P. Zielinski, and L. Drmic for software development, and G. Katsaros for equipment support, as well as the MIBA workshop and the Institute of Science and Technology Austria nanofabrication facility. We thank I. Pop, S. Deleglise, and E. Flurin for discussions. This work was supported by a NOMIS Foundation research grant, the Austrian Science Fund (FWF) through BeyondC (F7105), and IST Austria. M.P. is the recipient of a Pöttinger scholarship at IST Austria. E.R. is the recipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria.","volume":2,"ddc":["530"],"citation":{"short":"M. Peruzzo, F. Hassani, G. Szep, A. Trioni, E. Redchenko, M. Zemlicka, J.M. Fink, PRX Quantum 2 (2021) 040341.","mla":"Peruzzo, Matilda, et al. “Geometric Superinductance Qubits: Controlling Phase Delocalization across a Single Josephson Junction.” <i>PRX Quantum</i>, vol. 2, no. 4, American Physical Society, 2021, p. 040341, doi:<a href=\"https://doi.org/10.1103/PRXQuantum.2.040341\">10.1103/PRXQuantum.2.040341</a>.","ista":"Peruzzo M, Hassani F, Szep G, Trioni A, Redchenko E, Zemlicka M, Fink JM. 2021. Geometric superinductance qubits: Controlling phase delocalization across a single Josephson junction. PRX Quantum. 2(4), 040341.","ama":"Peruzzo M, Hassani F, Szep G, et al. Geometric superinductance qubits: Controlling phase delocalization across a single Josephson junction. <i>PRX Quantum</i>. 2021;2(4):040341. doi:<a href=\"https://doi.org/10.1103/PRXQuantum.2.040341\">10.1103/PRXQuantum.2.040341</a>","apa":"Peruzzo, M., Hassani, F., Szep, G., Trioni, A., Redchenko, E., Zemlicka, M., &#38; Fink, J. M. (2021). Geometric superinductance qubits: Controlling phase delocalization across a single Josephson junction. <i>PRX Quantum</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PRXQuantum.2.040341\">https://doi.org/10.1103/PRXQuantum.2.040341</a>","chicago":"Peruzzo, Matilda, Farid Hassani, Gregory Szep, Andrea Trioni, Elena Redchenko, Martin Zemlicka, and Johannes M Fink. “Geometric Superinductance Qubits: Controlling Phase Delocalization across a Single Josephson Junction.” <i>PRX Quantum</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/PRXQuantum.2.040341\">https://doi.org/10.1103/PRXQuantum.2.040341</a>.","ieee":"M. Peruzzo <i>et al.</i>, “Geometric superinductance qubits: Controlling phase delocalization across a single Josephson junction,” <i>PRX Quantum</i>, vol. 2, no. 4. American Physical Society, p. 040341, 2021."},"year":"2021","date_updated":"2023-09-07T13:31:22Z","external_id":{"isi":["000723015100001"],"arxiv":["2106.05882"]},"isi":1,"day":"24","arxiv":1,"doi":"10.1103/PRXQuantum.2.040341","abstract":[{"lang":"eng","text":"There are two elementary superconducting qubit types that derive directly from the quantum harmonic oscillator. In one, the inductor is replaced by a nonlinear Josephson junction to realize the widely used charge qubits with a compact phase variable and a discrete charge wave function. In the other, the junction is added in parallel, which gives rise to an extended phase variable, continuous wave functions, and a rich energy-level structure due to the loop topology. While the corresponding rf superconducting quantum interference device Hamiltonian was introduced as a quadratic quasi-one-dimensional potential approximation to describe the fluxonium qubit implemented with long Josephson-junction arrays, in this work we implement it directly using a linear superinductor formed by a single uninterrupted aluminum wire. We present a large variety of qubits, all stemming from the same circuit but with drastically different characteristic energy scales. This includes flux and fluxonium qubits but also the recently introduced quasicharge qubit with strongly enhanced zero-point phase fluctuations and a heavily suppressed flux dispersion. The use of a geometric inductor results in high reproducibility of the inductive energy as guaranteed by top-down lithography—a key ingredient for intrinsically protected superconducting qubits."}]},{"related_material":{"link":[{"relation":"press_release","description":"News on IST Homepage","url":"https://ist.ac.at/en/news/scientists-demonstrate-quantum-radar-prototype/"}],"record":[{"relation":"later_version","id":"9001","status":"public"}]},"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","file":[{"relation":"main_file","access_level":"open_access","file_id":"7913","creator":"dernst","date_created":"2020-06-02T09:18:36Z","file_size":795822,"checksum":"16fa61cc1951b444ee74c07188cda9da","date_updated":"2020-07-14T12:48:05Z","file_name":"2020_ScienceAdvances_Barzanjeh.pdf","content_type":"application/pdf"}],"oa":1,"publication_identifier":{"eissn":["23752548"]},"date_published":"2020-05-06T00:00:00Z","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"language":[{"iso":"eng"}],"month":"05","article_number":"eabb0451","oa_version":"Published Version","project":[{"grant_number":"758053","name":"A Fiber Optic Transceiver for Superconducting Qubits","_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"name":"Quantum readout techniques and technologies","grant_number":"862644","_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","call_identifier":"H2020"},{"call_identifier":"H2020","_id":"258047B6-B435-11E9-9278-68D0E5697425","name":"Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination with cavity Optomechanics SUPEREOM","grant_number":"707438"},{"name":"Hybrid Optomechanical Technologies","grant_number":"732894","_id":"257EB838-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"name":"Integrating superconducting quantum circuits","grant_number":"F07105","call_identifier":"FWF","_id":"26927A52-B435-11E9-9278-68D0E5697425"}],"publication":"Science Advances","has_accepted_license":"1","ddc":["530"],"volume":6,"abstract":[{"lang":"eng","text":"Quantum illumination uses entangled signal-idler photon pairs to boost the detection efficiency of low-reflectivity objects in environments with bright thermal noise. Its advantage is particularly evident at low signal powers, a promising feature for applications such as noninvasive biomedical scanning or low-power short-range radar. Here, we experimentally investigate the concept of quantum illumination at microwave frequencies. We generate entangled fields to illuminate a room-temperature object at a distance of 1 m in a free-space detection setup. We implement a digital phase-conjugate receiver based on linear quadrature measurements that outperforms a symmetric classical noise radar in the same conditions, despite the entanglement-breaking signal path. Starting from experimental data, we also simulate the case of perfect idler photon number detection, which results in a quantum advantage compared with the relative classical benchmark. Our results highlight the opportunities and challenges in the way toward a first room-temperature application of microwave quantum circuits."}],"arxiv":1,"doi":"10.1126/sciadv.abb0451","day":"06","isi":1,"external_id":{"isi":["000531171100045"],"arxiv":["1908.03058"]},"date_updated":"2024-09-10T12:23:52Z","citation":{"apa":"Barzanjeh, S., Pirandola, S., Vitali, D., &#38; Fink, J. M. (2020). Microwave quantum illumination using a digital receiver. <i>Science Advances</i>. AAAS. <a href=\"https://doi.org/10.1126/sciadv.abb0451\">https://doi.org/10.1126/sciadv.abb0451</a>","ama":"Barzanjeh S, Pirandola S, Vitali D, Fink JM. Microwave quantum illumination using a digital receiver. <i>Science Advances</i>. 2020;6(19). doi:<a href=\"https://doi.org/10.1126/sciadv.abb0451\">10.1126/sciadv.abb0451</a>","chicago":"Barzanjeh, Shabir, S. Pirandola, D Vitali, and Johannes M Fink. “Microwave Quantum Illumination Using a Digital Receiver.” <i>Science Advances</i>. AAAS, 2020. <a href=\"https://doi.org/10.1126/sciadv.abb0451\">https://doi.org/10.1126/sciadv.abb0451</a>.","ieee":"S. Barzanjeh, S. Pirandola, D. Vitali, and J. M. Fink, “Microwave quantum illumination using a digital receiver,” <i>Science Advances</i>, vol. 6, no. 19. AAAS, 2020.","mla":"Barzanjeh, Shabir, et al. “Microwave Quantum Illumination Using a Digital Receiver.” <i>Science Advances</i>, vol. 6, no. 19, eabb0451, AAAS, 2020, doi:<a href=\"https://doi.org/10.1126/sciadv.abb0451\">10.1126/sciadv.abb0451</a>.","short":"S. Barzanjeh, S. Pirandola, D. Vitali, J.M. Fink, Science Advances 6 (2020).","ista":"Barzanjeh S, Pirandola S, Vitali D, Fink JM. 2020. Microwave quantum illumination using a digital receiver. Science Advances. 6(19), eabb0451."},"year":"2020","article_type":"original","publisher":"AAAS","file_date_updated":"2020-07-14T12:48:05Z","ec_funded":1,"quality_controlled":"1","title":"Microwave quantum illumination using a digital receiver","intvolume":"         6","publication_status":"published","date_created":"2020-05-31T22:00:49Z","article_processing_charge":"No","department":[{"_id":"JoFi"}],"author":[{"id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87","last_name":"Barzanjeh","first_name":"Shabir","full_name":"Barzanjeh, Shabir","orcid":"0000-0003-0415-1423"},{"full_name":"Pirandola, S.","last_name":"Pirandola","first_name":"S."},{"full_name":"Vitali, D","last_name":"Vitali","first_name":"D"},{"first_name":"Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"}],"issue":"19","_id":"7910","scopus_import":"1"},{"publication_identifier":{"eissn":["20589565"]},"oa":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"date_published":"2020-05-25T00:00:00Z","type":"journal_article","file":[{"file_id":"8072","creator":"cziletti","access_level":"open_access","relation":"main_file","date_updated":"2020-07-14T12:48:08Z","content_type":"application/pdf","file_name":"2020_QuantumSciTechnol_Fink.pdf","date_created":"2020-06-30T10:29:10Z","checksum":"8f25f05053f511f892ae8fa93f341e61","file_size":2600967}],"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa_version":"Published Version","project":[{"_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"A Fiber Optic Transceiver for Superconducting Qubits","grant_number":"758053"},{"_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Integrating superconducting quantum circuits","grant_number":"F07105"},{"call_identifier":"H2020","_id":"257EB838-B435-11E9-9278-68D0E5697425","grant_number":"732894","name":"Hybrid Optomechanical Technologies"},{"_id":"2622978C-B435-11E9-9278-68D0E5697425","name":"Hybrid Semiconductor - Superconductor Quantum Devices"}],"month":"05","article_number":"034011","publication":"Quantum Science and Technology","has_accepted_license":"1","language":[{"iso":"eng"}],"doi":"10.1088/2058-9565/ab8dce","day":"25","abstract":[{"text":"Microelectromechanical systems and integrated photonics provide the basis for many reliable and compact circuit elements in modern communication systems. Electro-opto-mechanical devices are currently one of the leading approaches to realize ultra-sensitive, low-loss transducers for an emerging quantum information technology. Here we present an on-chip microwave frequency converter based on a planar aluminum on silicon nitride platform that is compatible with slot-mode coupled photonic crystal cavities. We show efficient frequency conversion between two propagating microwave modes mediated by the radiation pressure interaction with a metalized dielectric nanobeam oscillator. We achieve bidirectional coherent conversion with a total device efficiency of up to ~60%, a dynamic range of 2 × 10^9 photons/s and an instantaneous bandwidth of up to 1.7 kHz. A high fidelity quantum state transfer would be possible if the drive dependent output noise of currently ~14 photons s^−1 Hz^−1 is further reduced. Such a silicon nitride based transducer is in situ reconfigurable and could be used for on-chip classical and quantum signal routing and filtering, both for microwave and hybrid microwave-optical applications.","lang":"eng"}],"date_updated":"2024-08-07T07:11:51Z","year":"2020","citation":{"ama":"Fink JM, Kalaee M, Norte R, Pitanti A, Painter O. Efficient microwave frequency conversion mediated by a photonics compatible silicon nitride nanobeam oscillator. <i>Quantum Science and Technology</i>. 2020;5(3). doi:<a href=\"https://doi.org/10.1088/2058-9565/ab8dce\">10.1088/2058-9565/ab8dce</a>","apa":"Fink, J. M., Kalaee, M., Norte, R., Pitanti, A., &#38; Painter, O. (2020). Efficient microwave frequency conversion mediated by a photonics compatible silicon nitride nanobeam oscillator. <i>Quantum Science and Technology</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/2058-9565/ab8dce\">https://doi.org/10.1088/2058-9565/ab8dce</a>","chicago":"Fink, Johannes M, M. Kalaee, R. Norte, A. Pitanti, and O. Painter. “Efficient Microwave Frequency Conversion Mediated by a Photonics Compatible Silicon Nitride Nanobeam Oscillator.” <i>Quantum Science and Technology</i>. IOP Publishing, 2020. <a href=\"https://doi.org/10.1088/2058-9565/ab8dce\">https://doi.org/10.1088/2058-9565/ab8dce</a>.","ieee":"J. M. Fink, M. Kalaee, R. Norte, A. Pitanti, and O. Painter, “Efficient microwave frequency conversion mediated by a photonics compatible silicon nitride nanobeam oscillator,” <i>Quantum Science and Technology</i>, vol. 5, no. 3. IOP Publishing, 2020.","short":"J.M. Fink, M. Kalaee, R. Norte, A. Pitanti, O. Painter, Quantum Science and Technology 5 (2020).","mla":"Fink, Johannes M., et al. “Efficient Microwave Frequency Conversion Mediated by a Photonics Compatible Silicon Nitride Nanobeam Oscillator.” <i>Quantum Science and Technology</i>, vol. 5, no. 3, 034011, IOP Publishing, 2020, doi:<a href=\"https://doi.org/10.1088/2058-9565/ab8dce\">10.1088/2058-9565/ab8dce</a>.","ista":"Fink JM, Kalaee M, Norte R, Pitanti A, Painter O. 2020. Efficient microwave frequency conversion mediated by a photonics compatible silicon nitride nanobeam oscillator. Quantum Science and Technology. 5(3), 034011."},"isi":1,"external_id":{"isi":["000539300800001"]},"volume":5,"ddc":["530"],"publication_status":"published","date_created":"2020-06-29T07:59:35Z","department":[{"_id":"JoFi"}],"article_processing_charge":"Yes (via OA deal)","title":"Efficient microwave frequency conversion mediated by a photonics compatible silicon nitride nanobeam oscillator","intvolume":"         5","_id":"8038","scopus_import":"1","author":[{"last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"},{"first_name":"M.","last_name":"Kalaee","full_name":"Kalaee, M."},{"last_name":"Norte","first_name":"R.","full_name":"Norte, R."},{"last_name":"Pitanti","first_name":"A.","full_name":"Pitanti, A."},{"first_name":"O.","last_name":"Painter","full_name":"Painter, O."}],"issue":"3","publisher":"IOP Publishing","article_type":"original","quality_controlled":"1","ec_funded":1,"file_date_updated":"2020-07-14T12:48:08Z"},{"publication":"Physical Review Applied","has_accepted_license":"1","acknowledged_ssus":[{"_id":"NanoFab"}],"oa_version":"Published Version","project":[{"name":"Integrating superconducting quantum circuits","grant_number":"F07105","_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"_id":"257EB838-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Hybrid Optomechanical Technologies","grant_number":"732894"},{"call_identifier":"H2020","_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","grant_number":"862644","name":"Quantum readout techniques and technologies"},{"_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"758053","name":"A Fiber Optic Transceiver for Superconducting Qubits"}],"month":"10","article_number":"044055","language":[{"iso":"eng"}],"date_published":"2020-10-29T00:00:00Z","type":"journal_article","publication_identifier":{"eissn":["23317019"]},"oa":1,"file":[{"access_level":"open_access","relation":"main_file","success":1,"file_id":"9300","creator":"dernst","date_created":"2021-03-29T11:43:20Z","checksum":"2a634abe75251ae7628cd54c8a4ce2e8","file_size":2607823,"date_updated":"2021-03-29T11:43:20Z","content_type":"application/pdf","file_name":"2020_PhysReviewApplied_Peruzzo.pdf"}],"related_material":{"record":[{"relation":"research_data","id":"13070","status":"public"},{"status":"public","id":"9920","relation":"dissertation_contains"}]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","_id":"8755","scopus_import":"1","author":[{"first_name":"Matilda","last_name":"Peruzzo","orcid":"0000-0002-3415-4628","full_name":"Peruzzo, Matilda","id":"3F920B30-F248-11E8-B48F-1D18A9856A87"},{"id":"42F71B44-F248-11E8-B48F-1D18A9856A87","first_name":"Andrea","last_name":"Trioni","full_name":"Trioni, Andrea"},{"id":"2AED110C-F248-11E8-B48F-1D18A9856A87","full_name":"Hassani, Farid","orcid":"0000-0001-6937-5773","last_name":"Hassani","first_name":"Farid"},{"full_name":"Zemlicka, Martin","first_name":"Martin","last_name":"Zemlicka","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X"}],"issue":"4","publication_status":"published","article_processing_charge":"No","department":[{"_id":"JoFi"}],"date_created":"2020-11-15T23:01:17Z","title":"Surpassing the resistance quantum with a geometric superinductor","intvolume":"        14","quality_controlled":"1","ec_funded":1,"file_date_updated":"2021-03-29T11:43:20Z","publisher":"American Physical Society","article_type":"original","date_updated":"2024-08-07T07:11:55Z","citation":{"short":"M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, J.M. Fink, Physical Review Applied 14 (2020).","mla":"Peruzzo, Matilda, et al. “Surpassing the Resistance Quantum with a Geometric Superinductor.” <i>Physical Review Applied</i>, vol. 14, no. 4, 044055, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevApplied.14.044055\">10.1103/PhysRevApplied.14.044055</a>.","ista":"Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. 2020. Surpassing the resistance quantum with a geometric superinductor. Physical Review Applied. 14(4), 044055.","ama":"Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. Surpassing the resistance quantum with a geometric superinductor. <i>Physical Review Applied</i>. 2020;14(4). doi:<a href=\"https://doi.org/10.1103/PhysRevApplied.14.044055\">10.1103/PhysRevApplied.14.044055</a>","apa":"Peruzzo, M., Trioni, A., Hassani, F., Zemlicka, M., &#38; Fink, J. M. (2020). Surpassing the resistance quantum with a geometric superinductor. <i>Physical Review Applied</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevApplied.14.044055\">https://doi.org/10.1103/PhysRevApplied.14.044055</a>","ieee":"M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, and J. M. Fink, “Surpassing the resistance quantum with a geometric superinductor,” <i>Physical Review Applied</i>, vol. 14, no. 4. American Physical Society, 2020.","chicago":"Peruzzo, Matilda, Andrea Trioni, Farid Hassani, Martin Zemlicka, and Johannes M Fink. “Surpassing the Resistance Quantum with a Geometric Superinductor.” <i>Physical Review Applied</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevApplied.14.044055\">https://doi.org/10.1103/PhysRevApplied.14.044055</a>."},"year":"2020","isi":1,"external_id":{"arxiv":["2007.01644"],"isi":["000582797300003"]},"arxiv":1,"doi":"10.1103/PhysRevApplied.14.044055","day":"29","abstract":[{"text":"The superconducting circuit community has recently discovered the promising potential of superinductors. These circuit elements have a characteristic impedance exceeding the resistance quantum RQ ≈ 6.45 kΩ which leads to a suppression of ground state charge fluctuations. Applications include the realization of hardware protected qubits for fault tolerant quantum computing, improved coupling to small dipole moment objects and defining a new quantum metrology standard for the ampere. In this work we refute the widespread notion that superinductors can only be implemented based on kinetic inductance, i.e. using disordered superconductors or Josephson junction arrays. We present modeling, fabrication and characterization of 104 planar aluminum coil resonators with a characteristic impedance up to 30.9 kΩ at 5.6 GHz and a capacitance down to ≤ 1 fF, with lowloss and a power handling reaching 108 intra-cavity photons. Geometric superinductors are free of uncontrolled tunneling events and offer high reproducibility, linearity and the ability to couple magnetically - properties that significantly broaden the scope of future quantum circuits. ","lang":"eng"}],"acknowledgement":"The authors acknowledge the support from I. Prieto and the IST Nanofabrication Facility. This work was supported by IST Austria and a NOMIS foundation research grant and the Austrian Science Fund (FWF) through BeyondC (F71). MP is the recipient of a P¨ottinger scholarship at IST Austria. JMF acknowledges support from the European Union’s Horizon 2020 research and innovation programs under grant agreement No 732894 (FET Proactive HOT), 862644 (FET Open QUARTET), and the European Research Council under grant agreement\r\nnumber 758053 (ERC StG QUNNECT). ","volume":14,"ddc":["530"]},{"language":[{"iso":"eng"}],"article_number":"020315","month":"11","project":[{"grant_number":"758053","name":"A Fiber Optic Transceiver for Superconducting Qubits","call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425"},{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"call_identifier":"H2020","_id":"9B868D20-BA93-11EA-9121-9846C619BF3A","grant_number":"899354","name":"Quantum Local Area Networks with Superconducting Qubits"},{"call_identifier":"FWF","_id":"26927A52-B435-11E9-9278-68D0E5697425","grant_number":"F07105","name":"Integrating superconducting quantum circuits"},{"_id":"2671EB66-B435-11E9-9278-68D0E5697425","name":"Coherent on-chip conversion of superconducting qubit signals from microwaves to optical frequencies"}],"oa_version":"Published Version","acknowledged_ssus":[{"_id":"M-Shop"}],"has_accepted_license":"1","publication":"PRX Quantum","related_material":{"record":[{"id":"13071","relation":"research_data","status":"public"},{"status":"public","relation":"dissertation_contains","id":"12900"},{"status":"public","relation":"dissertation_contains","id":"13175"}],"link":[{"url":"https://ist.ac.at/en/news/how-to-transport-microwave-quantum-information-via-optical-fiber/","relation":"press_release","description":"News on IST Homepage"}]},"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","file":[{"file_id":"9115","creator":"dernst","access_level":"open_access","success":1,"relation":"main_file","date_updated":"2021-02-12T11:16:16Z","content_type":"application/pdf","file_name":"2020_PRXQuantum_Hease.pdf","date_created":"2021-02-12T11:16:16Z","checksum":"b70b12ded6d7660d4c9037eb09bfed0c","file_size":2146924}],"oa":1,"publication_identifier":{"issn":["2691-3399"]},"type":"journal_article","date_published":"2020-11-23T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"article_type":"original","publisher":"American Physical Society","file_date_updated":"2021-02-12T11:16:16Z","ec_funded":1,"quality_controlled":"1","intvolume":"         1","title":"Bidirectional electro-optic wavelength conversion in the quantum ground state","article_processing_charge":"No","department":[{"_id":"JoFi"}],"date_created":"2021-02-12T10:41:28Z","publication_status":"published","issue":"2","author":[{"id":"29705398-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9868-2166","full_name":"Hease, William J","first_name":"William J","last_name":"Hease"},{"orcid":"0000-0001-6249-5860","full_name":"Rueda Sanchez, Alfredo R","first_name":"Alfredo R","last_name":"Rueda Sanchez","id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87"},{"id":"47D26E34-F248-11E8-B48F-1D18A9856A87","first_name":"Rishabh","last_name":"Sahu","orcid":"0000-0001-6264-2162","full_name":"Sahu, Rishabh"},{"id":"45598606-F248-11E8-B48F-1D18A9856A87","full_name":"Wulf, Matthias","orcid":"0000-0001-6613-1378","last_name":"Wulf","first_name":"Matthias"},{"orcid":"0000-0003-1397-7876","full_name":"Arnold, Georg M","first_name":"Georg M","last_name":"Arnold","id":"3770C838-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Schwefel, Harald G.L.","last_name":"Schwefel","first_name":"Harald G.L."},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X"}],"_id":"9114","ddc":["530"],"volume":1,"acknowledgement":"The authors acknowledge the support of T. Menner, A. Arslani, and T. Asenov from the Miba machine shop for machining the microwave cavity, and thank S. Barzanjeh, F. Sedlmeir, and C. Marquardt for fruitful discussions. This work is supported by IST Austria and the European Research Council under Grant No. 758053 (ERC StG QUNNECT). W.H. is the recipient of an ISTplus postdoctoral fellowship with funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant No. 754411.\r\nG.A. is the recipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria. J.M.F. acknowledges support from the Austrian Science Fund (FWF) through BeyondC (F71) and the European Union’s Horizon 2020 research and innovation program under Grant No. 899354 (FET Open SuperQuLAN). H.G.L.S. acknowledges support from the Aotearoa/New Zealand’s MBIE Endeavour Smart Ideas Grant No UOOX1805.","abstract":[{"text":"Microwave photonics lends the advantages of fiber optics to electronic sensing and communication systems. In contrast to nonlinear optics, electro-optic devices so far require classical modulation fields whose variance is dominated by electronic or thermal noise rather than quantum fluctuations. Here we demonstrate bidirectional single-sideband conversion of X band microwave to C band telecom light with a microwave mode occupancy as low as 0.025 ± 0.005 and an added output noise of less than or equal to 0.074 photons. This is facilitated by radiative cooling and a triply resonant ultra-low-loss transducer operating at millikelvin temperatures. The high bandwidth of 10.7 MHz and total (internal) photon conversion\r\nefficiency of 0.03% (0.67%) combined with the extremely slow heating rate of 1.1 added output noise photons per second for the highest available pump power of 1.48 mW puts near-unity efficiency pulsed quantum transduction within reach. Together with the non-Gaussian resources of superconducting qubits this might provide the practical foundation to extend the range and scope of current quantum networks in analogy to electrical repeaters in classical fiber optic communication.","lang":"eng"}],"day":"23","doi":"10.1103/prxquantum.1.020315","external_id":{"isi":["000674680100001"]},"isi":1,"year":"2020","citation":{"chicago":"Hease, William J, Alfredo R Rueda Sanchez, Rishabh Sahu, Matthias Wulf, Georg M Arnold, Harald G.L. Schwefel, and Johannes M Fink. “Bidirectional Electro-Optic Wavelength Conversion in the Quantum Ground State.” <i>PRX Quantum</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/prxquantum.1.020315\">https://doi.org/10.1103/prxquantum.1.020315</a>.","ieee":"W. J. Hease <i>et al.</i>, “Bidirectional electro-optic wavelength conversion in the quantum ground state,” <i>PRX Quantum</i>, vol. 1, no. 2. American Physical Society, 2020.","ama":"Hease WJ, Rueda Sanchez AR, Sahu R, et al. Bidirectional electro-optic wavelength conversion in the quantum ground state. <i>PRX Quantum</i>. 2020;1(2). doi:<a href=\"https://doi.org/10.1103/prxquantum.1.020315\">10.1103/prxquantum.1.020315</a>","apa":"Hease, W. J., Rueda Sanchez, A. R., Sahu, R., Wulf, M., Arnold, G. M., Schwefel, H. G. L., &#38; Fink, J. M. (2020). Bidirectional electro-optic wavelength conversion in the quantum ground state. <i>PRX Quantum</i>. American Physical Society. <a href=\"https://doi.org/10.1103/prxquantum.1.020315\">https://doi.org/10.1103/prxquantum.1.020315</a>","ista":"Hease WJ, Rueda Sanchez AR, Sahu R, Wulf M, Arnold GM, Schwefel HGL, Fink JM. 2020. Bidirectional electro-optic wavelength conversion in the quantum ground state. PRX Quantum. 1(2), 020315.","short":"W.J. Hease, A.R. Rueda Sanchez, R. Sahu, M. Wulf, G.M. Arnold, H.G.L. Schwefel, J.M. Fink, PRX Quantum 1 (2020).","mla":"Hease, William J., et al. “Bidirectional Electro-Optic Wavelength Conversion in the Quantum Ground State.” <i>PRX Quantum</i>, vol. 1, no. 2, 020315, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/prxquantum.1.020315\">10.1103/prxquantum.1.020315</a>."},"date_updated":"2024-10-29T09:11:05Z"},{"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"date_published":"2019-12-01T00:00:00Z","type":"journal_article","publication_identifier":{"issn":["2056-6387"]},"oa":1,"file":[{"file_id":"7157","creator":"dernst","relation":"main_file","access_level":"open_access","date_updated":"2020-07-14T12:47:50Z","content_type":"application/pdf","file_name":"2019_NPJ_Rueda.pdf","date_created":"2019-12-09T08:25:06Z","file_size":1580132,"checksum":"13e0ea1d4f9b5f5710780d9473364f58"}],"status":"public","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","publication":"npj Quantum Information","has_accepted_license":"1","oa_version":"Published Version","project":[{"_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"A Fiber Optic Transceiver for Superconducting Qubits","grant_number":"758053"},{"_id":"258047B6-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"707438","name":"Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination with cavity Optomechanics SUPEREOM"},{"_id":"257EB838-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"732894","name":"Hybrid Optomechanical Technologies"},{"_id":"26927A52-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"F07105","name":"Integrating superconducting quantum circuits"}],"month":"12","article_number":"108","language":[{"iso":"eng"}],"date_updated":"2024-08-07T07:11:55Z","year":"2019","citation":{"ama":"Rueda Sanchez AR, Hease WJ, Barzanjeh S, Fink JM. Electro-optic entanglement source for microwave to telecom quantum state transfer. <i>npj Quantum Information</i>. 2019;5. doi:<a href=\"https://doi.org/10.1038/s41534-019-0220-5\">10.1038/s41534-019-0220-5</a>","apa":"Rueda Sanchez, A. R., Hease, W. J., Barzanjeh, S., &#38; Fink, J. M. (2019). Electro-optic entanglement source for microwave to telecom quantum state transfer. <i>Npj Quantum Information</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41534-019-0220-5\">https://doi.org/10.1038/s41534-019-0220-5</a>","ieee":"A. R. Rueda Sanchez, W. J. Hease, S. Barzanjeh, and J. M. Fink, “Electro-optic entanglement source for microwave to telecom quantum state transfer,” <i>npj Quantum Information</i>, vol. 5. Springer Nature, 2019.","chicago":"Rueda Sanchez, Alfredo R, William J Hease, Shabir Barzanjeh, and Johannes M Fink. “Electro-Optic Entanglement Source for Microwave to Telecom Quantum State Transfer.” <i>Npj Quantum Information</i>. Springer Nature, 2019. <a href=\"https://doi.org/10.1038/s41534-019-0220-5\">https://doi.org/10.1038/s41534-019-0220-5</a>.","short":"A.R. Rueda Sanchez, W.J. Hease, S. Barzanjeh, J.M. Fink, Npj Quantum Information 5 (2019).","mla":"Rueda Sanchez, Alfredo R., et al. “Electro-Optic Entanglement Source for Microwave to Telecom Quantum State Transfer.” <i>Npj Quantum Information</i>, vol. 5, 108, Springer Nature, 2019, doi:<a href=\"https://doi.org/10.1038/s41534-019-0220-5\">10.1038/s41534-019-0220-5</a>.","ista":"Rueda Sanchez AR, Hease WJ, Barzanjeh S, Fink JM. 2019. Electro-optic entanglement source for microwave to telecom quantum state transfer. npj Quantum Information. 5, 108."},"isi":1,"external_id":{"isi":["000502996200003"],"arxiv":["1909.01470"]},"arxiv":1,"doi":"10.1038/s41534-019-0220-5","day":"01","abstract":[{"text":"We propose an efficient microwave-photonic modulator as a resource for stationary entangled microwave-optical fields and develop the theory for deterministic entanglement generation and quantum state transfer in multi-resonant electro-optic systems. The device is based on a single crystal whispering gallery mode resonator integrated into a 3D-microwave cavity. The specific design relies on a new combination of thin-film technology and conventional machining that is optimized for the lowest dissipation rates in the microwave, optical, and mechanical domains. We extract important device properties from finite-element simulations and predict continuous variable entanglement generation rates on the order of a Mebit/s for optical pump powers of only a few tens of microwatts. We compare the quantum state transfer fidelities of coherent, squeezed, and non-Gaussian cat states for both teleportation and direct conversion protocols under realistic conditions. Combining the unique capabilities of circuit quantum electrodynamics with the resilience of fiber optic communication could facilitate long-distance solid-state qubit networks, new methods for quantum signal synthesis, quantum key distribution, and quantum enhanced detection, as well as more power-efficient classical sensing and modulation.","lang":"eng"}],"volume":5,"ddc":["530"],"_id":"7156","scopus_import":"1","author":[{"id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87","first_name":"Alfredo R","last_name":"Rueda Sanchez","orcid":"0000-0001-6249-5860","full_name":"Rueda Sanchez, Alfredo R"},{"id":"29705398-F248-11E8-B48F-1D18A9856A87","first_name":"William J","last_name":"Hease","orcid":"0000-0001-9868-2166","full_name":"Hease, William J"},{"id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87","last_name":"Barzanjeh","first_name":"Shabir","full_name":"Barzanjeh, Shabir","orcid":"0000-0003-0415-1423"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X"}],"publication_status":"published","department":[{"_id":"JoFi"}],"article_processing_charge":"No","date_created":"2019-12-09T08:18:56Z","title":"Electro-optic entanglement source for microwave to telecom quantum state transfer","intvolume":"         5","ec_funded":1,"quality_controlled":"1","file_date_updated":"2020-07-14T12:47:50Z","publisher":"Springer Nature","article_type":"original"}]