[{"license":"https://creativecommons.org/licenses/by-nc/4.0/","issue":"1","related_material":{"link":[{"description":"Cover Page","relation":"poster","url":"https://doi.org/10.1002/qute.202070011"}]},"volume":3,"language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","access_level":"open_access","success":1,"checksum":"157e95abd6883c3b35b0fa78ae10775e","file_id":"9216","file_size":2410114,"date_updated":"2021-03-02T12:30:03Z","creator":"dernst","file_name":"2020_AdvQuantumTech_Lambert.pdf","date_created":"2021-03-02T12:30:03Z"}],"publication_status":"published","publication_identifier":{"issn":["2511-9044"]},"intvolume":" 3","month":"01","oa_version":"Published Version","abstract":[{"text":"Quantum information technology based on solid state qubits has created much interest in converting quantum states from the microwave to the optical domain. Optical photons, unlike microwave photons, can be transmitted by fiber, making them suitable for long distance quantum communication. Moreover, the optical domain offers access to a large set of very well‐developed quantum optical tools, such as highly efficient single‐photon detectors and long‐lived quantum memories. For a high fidelity microwave to optical transducer, efficient conversion at single photon level and low added noise is needed. Currently, the most promising approaches to build such systems are based on second‐order nonlinear phenomena such as optomechanical and electro‐optic interactions. Alternative approaches, although not yet as efficient, include magneto‐optical coupling and schemes based on isolated quantum systems like atoms, ions, or quantum dots. Herein, the necessary theoretical foundations for the most important microwave‐to‐optical conversion experiments are provided, their implementations are described, and the current limitations and future prospects are discussed.","lang":"eng"}],"file_date_updated":"2021-03-02T12:30:03Z","department":[{"_id":"JoFi"}],"ddc":["530"],"date_updated":"2023-08-24T13:53:02Z","status":"public","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode","image":"/images/cc_by_nc.png","name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","short":"CC BY-NC (4.0)"},"type":"journal_article","article_type":"original","_id":"9195","date_created":"2021-02-25T08:52:36Z","date_published":"2020-01-01T00:00:00Z","doi":"10.1002/qute.201900077","publication":"Advanced Quantum Technologies","day":"01","year":"2020","has_accepted_license":"1","isi":1,"oa":1,"quality_controlled":"1","publisher":"Wiley","acknowledgement":"The authors thank Amita Deb for useful comments on this manuscript. The authors acknowledge support from the MBIE of New Zealand Endeavour Smart Ideas fund. The reference numbers in Figure 8 were corrected in April 2020, after online publication.","title":"Coherent conversion between microwave and optical photons - An overview of physical implementations","article_processing_charge":"No","external_id":{"isi":["000548088300001"]},"author":[{"first_name":"Nicholas J.","full_name":"Lambert, Nicholas J.","last_name":"Lambert"},{"full_name":"Rueda Sanchez, Alfredo R","orcid":"0000-0001-6249-5860","last_name":"Rueda Sanchez","id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87","first_name":"Alfredo R"},{"first_name":"Florian","last_name":"Sedlmeir","full_name":"Sedlmeir, Florian"},{"full_name":"Schwefel, Harald G. L.","last_name":"Schwefel","first_name":"Harald G. L."}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"mla":"Lambert, Nicholas J., et al. “Coherent Conversion between Microwave and Optical Photons - An Overview of Physical Implementations.” Advanced Quantum Technologies, vol. 3, no. 1, 1900077, Wiley, 2020, doi:10.1002/qute.201900077.","apa":"Lambert, N. J., Rueda Sanchez, A. R., Sedlmeir, F., & Schwefel, H. G. L. (2020). Coherent conversion between microwave and optical photons - An overview of physical implementations. Advanced Quantum Technologies. Wiley. https://doi.org/10.1002/qute.201900077","ama":"Lambert NJ, Rueda Sanchez AR, Sedlmeir F, Schwefel HGL. Coherent conversion between microwave and optical photons - An overview of physical implementations. Advanced Quantum Technologies. 2020;3(1). doi:10.1002/qute.201900077","short":"N.J. Lambert, A.R. Rueda Sanchez, F. Sedlmeir, H.G.L. Schwefel, Advanced Quantum Technologies 3 (2020).","ieee":"N. J. Lambert, A. R. Rueda Sanchez, F. Sedlmeir, and H. G. L. Schwefel, “Coherent conversion between microwave and optical photons - An overview of physical implementations,” Advanced Quantum Technologies, vol. 3, no. 1. Wiley, 2020.","chicago":"Lambert, Nicholas J., Alfredo R Rueda Sanchez, Florian Sedlmeir, and Harald G. L. Schwefel. “Coherent Conversion between Microwave and Optical Photons - An Overview of Physical Implementations.” Advanced Quantum Technologies. Wiley, 2020. https://doi.org/10.1002/qute.201900077.","ista":"Lambert NJ, Rueda Sanchez AR, Sedlmeir F, Schwefel HGL. 2020. Coherent conversion between microwave and optical photons - An overview of physical implementations. Advanced Quantum Technologies. 3(1), 1900077."},"article_number":"1900077"},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"mla":"Peruzzo, Matilda, et al. “Surpassing the Resistance Quantum with a Geometric Superinductor.” Physical Review Applied, vol. 14, no. 4, 044055, American Physical Society, 2020, doi:10.1103/PhysRevApplied.14.044055.","apa":"Peruzzo, M., Trioni, A., Hassani, F., Zemlicka, M., & Fink, J. M. (2020). Surpassing the resistance quantum with a geometric superinductor. Physical Review Applied. American Physical Society. https://doi.org/10.1103/PhysRevApplied.14.044055","ama":"Peruzzo M, Trioni A, Hassani F, Zemlicka M, Fink JM. Surpassing the resistance quantum with a geometric superinductor. Physical Review Applied. 2020;14(4). doi:10.1103/PhysRevApplied.14.044055","ieee":"M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, and J. M. Fink, “Surpassing the resistance quantum with a geometric superinductor,” Physical Review Applied, vol. 14, no. 4. American Physical Society, 2020.","short":"M. Peruzzo, A. Trioni, F. Hassani, M. Zemlicka, J.M. Fink, Physical Review Applied 14 (2020).","chicago":"Peruzzo, Matilda, Andrea Trioni, Farid Hassani, Martin Zemlicka, and Johannes M Fink. “Surpassing the Resistance Quantum with a Geometric Superinductor.” Physical Review Applied. American Physical Society, 2020. https://doi.org/10.1103/PhysRevApplied.14.044055.","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."},"title":"Surpassing the resistance quantum with a geometric superinductor","article_processing_charge":"No","external_id":{"isi":["000582797300003"],"arxiv":["2007.01644"]},"author":[{"full_name":"Peruzzo, Matilda","orcid":"0000-0002-3415-4628","last_name":"Peruzzo","id":"3F920B30-F248-11E8-B48F-1D18A9856A87","first_name":"Matilda"},{"full_name":"Trioni, Andrea","last_name":"Trioni","id":"42F71B44-F248-11E8-B48F-1D18A9856A87","first_name":"Andrea"},{"last_name":"Hassani","full_name":"Hassani, Farid","orcid":"0000-0001-6937-5773","first_name":"Farid","id":"2AED110C-F248-11E8-B48F-1D18A9856A87"},{"id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87","first_name":"Martin","last_name":"Zemlicka","full_name":"Zemlicka, Martin"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M","last_name":"Fink","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X"}],"article_number":"044055","project":[{"grant_number":"F07105","name":"Integrating superconducting quantum circuits","call_identifier":"FWF","_id":"26927A52-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","_id":"257EB838-B435-11E9-9278-68D0E5697425","grant_number":"732894","name":"Hybrid Optomechanical Technologies"},{"call_identifier":"H2020","_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","name":"Quantum readout techniques and technologies","grant_number":"862644"},{"name":"A Fiber Optic Transceiver for Superconducting Qubits","grant_number":"758053","_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"publication":"Physical Review Applied","day":"29","year":"2020","has_accepted_license":"1","isi":1,"date_created":"2020-11-15T23:01:17Z","doi":"10.1103/PhysRevApplied.14.044055","date_published":"2020-10-29T00:00:00Z","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). ","oa":1,"publisher":"American Physical Society","quality_controlled":"1","ddc":["530"],"date_updated":"2023-09-07T13:31:22Z","department":[{"_id":"JoFi"}],"file_date_updated":"2021-03-29T11:43:20Z","_id":"8755","status":"public","article_type":"original","type":"journal_article","language":[{"iso":"eng"}],"file":[{"success":1,"file_id":"9300","checksum":"2a634abe75251ae7628cd54c8a4ce2e8","content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_name":"2020_PhysReviewApplied_Peruzzo.pdf","date_created":"2021-03-29T11:43:20Z","file_size":2607823,"date_updated":"2021-03-29T11:43:20Z","creator":"dernst"}],"publication_status":"published","publication_identifier":{"eissn":["23317019"]},"ec_funded":1,"related_material":{"record":[{"relation":"research_data","status":"public","id":"13070"},{"status":"public","id":"9920","relation":"dissertation_contains"}]},"issue":"4","volume":14,"oa_version":"Published Version","abstract":[{"lang":"eng","text":"The superconducting circuit community has recently discovered the promising potential of superinductors. These circuit elements have a characteristic impedance exceeding the resistance quantum RQ ≈ 6.45 kΩ which leads to a suppression of ground state charge fluctuations. Applications include the realization of hardware protected qubits for fault tolerant quantum computing, improved coupling to small dipole moment objects and defining a new quantum metrology standard for the ampere. In this work we refute the widespread notion that superinductors can only be implemented based on kinetic inductance, i.e. using disordered superconductors or Josephson junction arrays. We present modeling, fabrication and characterization of 104 planar aluminum coil resonators with a characteristic impedance up to 30.9 kΩ at 5.6 GHz and a capacitance down to ≤ 1 fF, with lowloss and a power handling reaching 108 intra-cavity photons. Geometric superinductors are free of uncontrolled tunneling events and offer high reproducibility, linearity and the ability to couple magnetically - properties that significantly broaden the scope of future quantum circuits. "}],"acknowledged_ssus":[{"_id":"NanoFab"}],"intvolume":" 14","month":"10","scopus_import":"1"},{"article_processing_charge":"No","author":[{"first_name":"Nicholas J.","full_name":"Lambert, Nicholas J.","last_name":"Lambert"},{"first_name":"Sonia","last_name":"Mobassem","full_name":"Mobassem, Sonia"},{"last_name":"Rueda Sanchez","full_name":"Rueda Sanchez, Alfredo R","orcid":"0000-0001-6249-5860","first_name":"Alfredo R","id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Schwefel, Harald G.L.","last_name":"Schwefel","first_name":"Harald G.L."}],"department":[{"_id":"JoFi"}],"title":"New designs and noise channels in electro-optic microwave to optical up-conversion","date_updated":"2023-10-18T08:32:34Z","citation":{"ista":"Lambert NJ, Mobassem S, Rueda Sanchez AR, Schwefel HGL. 2020. New designs and noise channels in electro-optic microwave to optical up-conversion. OSA Quantum 2.0 Conference. OSA: Optical Society of America, OSA Technical Digest, , QTu8A.1.","chicago":"Lambert, Nicholas J., Sonia Mobassem, Alfredo R Rueda Sanchez, and Harald G.L. Schwefel. “New Designs and Noise Channels in Electro-Optic Microwave to Optical up-Conversion.” In OSA Quantum 2.0 Conference. Optica Publishing Group, 2020. https://doi.org/10.1364/QUANTUM.2020.QTu8A.1.","short":"N.J. Lambert, S. Mobassem, A.R. Rueda Sanchez, H.G.L. Schwefel, in:, OSA Quantum 2.0 Conference, Optica Publishing Group, 2020.","ieee":"N. J. Lambert, S. Mobassem, A. R. Rueda Sanchez, and H. G. L. Schwefel, “New designs and noise channels in electro-optic microwave to optical up-conversion,” in OSA Quantum 2.0 Conference, Washington, DC, United States, 2020.","apa":"Lambert, N. J., Mobassem, S., Rueda Sanchez, A. R., & Schwefel, H. G. L. (2020). New designs and noise channels in electro-optic microwave to optical up-conversion. In OSA Quantum 2.0 Conference. Washington, DC, United States: Optica Publishing Group. https://doi.org/10.1364/QUANTUM.2020.QTu8A.1","ama":"Lambert NJ, Mobassem S, Rueda Sanchez AR, Schwefel HGL. New designs and noise channels in electro-optic microwave to optical up-conversion. In: OSA Quantum 2.0 Conference. Optica Publishing Group; 2020. doi:10.1364/QUANTUM.2020.QTu8A.1","mla":"Lambert, Nicholas J., et al. “New Designs and Noise Channels in Electro-Optic Microwave to Optical up-Conversion.” OSA Quantum 2.0 Conference, QTu8A.1, Optica Publishing Group, 2020, doi:10.1364/QUANTUM.2020.QTu8A.1."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","conference":{"end_date":"2020-09-17","location":"Washington, DC, United States","start_date":"2020-09-14","name":"OSA: Optical Society of America"},"type":"conference","status":"public","_id":"10328","article_number":"QTu8A.1","date_created":"2021-11-21T23:01:31Z","date_published":"2020-01-01T00:00:00Z","doi":"10.1364/QUANTUM.2020.QTu8A.1","publication_status":"published","year":"2020","publication_identifier":{"isbn":["9-781-5575-2820-9"]},"language":[{"iso":"eng"}],"publication":"OSA Quantum 2.0 Conference","day":"01","publisher":"Optica Publishing Group","scopus_import":"1","quality_controlled":"1","alternative_title":["OSA Technical Digest"],"month":"01","abstract":[{"lang":"eng","text":"We discus noise channels in coherent electro-optic up-conversion between microwave and optical fields, in particular due to optical heating. We also report on a novel configuration, which promises to be flexible and highly efficient."}],"oa_version":"None"},{"abstract":[{"text":"In this paper we present a room temperature radiometer that can eliminate the need of using cryostats in satellite payload reducing its weight and improving reliability. The proposed radiometer is based on an electro-optic upconverter that boosts up microwave photons energy by upconverting them into an optical domain what makes them immune to thermal noise even if operating at room temperature. The converter uses a high-quality factor whispering gallery\r\nmode (WGM) resonator providing naturally narrow bandwidth and therefore might be useful for applications like microwave hyperspectral sensing. The upconversion process is explained by\r\nproviding essential information about photon conversion efficiency and sensitivity. To prove the concept, we describe an experiment which shows state-of-the-art photon conversion efficiency n=10-5 per mW of pump power at the frequency of 80 GHz.","lang":"eng"}],"acknowledgement":"This work has been financially supported by Comunidad de Madrid S2018/NMT-4333 ARTINLARA-CM projects, and “FUNDACIÓN SENER” REFTA projects.","oa_version":"None","publisher":"IEEE","quality_controlled":"1","month":"07","publication_status":"published","year":"2020","publication_identifier":{"eisbn":["9788831299008"]},"publication":"14th European Conference on Antennas and Propagation","language":[{"iso":"eng"}],"day":"08","date_created":"2024-03-04T09:57:48Z","date_published":"2020-07-08T00:00:00Z","doi":"10.23919/eucap48036.2020.9135962","_id":"15059","conference":{"name":"EuCAP: European Conference on Antennas and Propagation","end_date":"2020-03-20","location":"Copenhagen, Denmark","start_date":"2020-03-15"},"type":"conference","status":"public","date_updated":"2024-03-04T10:02:49Z","citation":{"ista":"Wasiak M, Botello GS, Abdalmalak KA, Sedlmeir F, Rueda Sanchez AR, Segovia-Vargas D, Schwefel HGL, Munoz LEG. 2020. Compact millimeter and submillimeter-wave photonic radiometer for cubesats. 14th European Conference on Antennas and Propagation. EuCAP: European Conference on Antennas and Propagation.","chicago":"Wasiak, Michal, Gabriel Santamaria Botello, Kerlos Atia Abdalmalak, Florian Sedlmeir, Alfredo R Rueda Sanchez, Daniel Segovia-Vargas, Harald G. L. Schwefel, and Luis Enrique Garcia Munoz. “Compact Millimeter and Submillimeter-Wave Photonic Radiometer for Cubesats.” In 14th European Conference on Antennas and Propagation. IEEE, 2020. https://doi.org/10.23919/eucap48036.2020.9135962.","ama":"Wasiak M, Botello GS, Abdalmalak KA, et al. Compact millimeter and submillimeter-wave photonic radiometer for cubesats. In: 14th European Conference on Antennas and Propagation. IEEE; 2020. doi:10.23919/eucap48036.2020.9135962","apa":"Wasiak, M., Botello, G. S., Abdalmalak, K. A., Sedlmeir, F., Rueda Sanchez, A. R., Segovia-Vargas, D., … Munoz, L. E. G. (2020). Compact millimeter and submillimeter-wave photonic radiometer for cubesats. In 14th European Conference on Antennas and Propagation. Copenhagen, Denmark: IEEE. https://doi.org/10.23919/eucap48036.2020.9135962","ieee":"M. Wasiak et al., “Compact millimeter and submillimeter-wave photonic radiometer for cubesats,” in 14th European Conference on Antennas and Propagation, Copenhagen, Denmark, 2020.","short":"M. Wasiak, G.S. Botello, K.A. Abdalmalak, F. Sedlmeir, A.R. Rueda Sanchez, D. Segovia-Vargas, H.G.L. Schwefel, L.E.G. Munoz, in:, 14th European Conference on Antennas and Propagation, IEEE, 2020.","mla":"Wasiak, Michal, et al. “Compact Millimeter and Submillimeter-Wave Photonic Radiometer for Cubesats.” 14th European Conference on Antennas and Propagation, IEEE, 2020, doi:10.23919/eucap48036.2020.9135962."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","author":[{"full_name":"Wasiak, Michal","last_name":"Wasiak","first_name":"Michal"},{"first_name":"Gabriel Santamaria","full_name":"Botello, Gabriel Santamaria","last_name":"Botello"},{"last_name":"Abdalmalak","full_name":"Abdalmalak, Kerlos Atia","first_name":"Kerlos Atia"},{"full_name":"Sedlmeir, Florian","last_name":"Sedlmeir","first_name":"Florian"},{"id":"3B82B0F8-F248-11E8-B48F-1D18A9856A87","first_name":"Alfredo R","full_name":"Rueda Sanchez, Alfredo R","orcid":"0000-0001-6249-5860","last_name":"Rueda Sanchez"},{"last_name":"Segovia-Vargas","full_name":"Segovia-Vargas, Daniel","first_name":"Daniel"},{"last_name":"Schwefel","full_name":"Schwefel, Harald G. L.","first_name":"Harald G. L."},{"full_name":"Munoz, Luis Enrique Garcia","last_name":"Munoz","first_name":"Luis Enrique Garcia"}],"department":[{"_id":"JoFi"}],"title":"Compact millimeter and submillimeter-wave photonic radiometer for cubesats"},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"short":"M. Kalaee, M. Mirhosseini, P.B. Dieterle, M. Peruzzo, J.M. Fink, O. Painter, Nature Nanotechnology 14 (2019) 334–339.","ieee":"M. Kalaee, M. Mirhosseini, P. B. Dieterle, M. Peruzzo, J. M. Fink, and O. Painter, “Quantum electromechanics of a hypersonic crystal,” Nature Nanotechnology, vol. 14, no. 4. Springer Nature, pp. 334–339, 2019.","apa":"Kalaee, M., Mirhosseini, M., Dieterle, P. B., Peruzzo, M., Fink, J. M., & Painter, O. (2019). Quantum electromechanics of a hypersonic crystal. Nature Nanotechnology. Springer Nature. https://doi.org/10.1038/s41565-019-0377-2","ama":"Kalaee M, Mirhosseini M, Dieterle PB, Peruzzo M, Fink JM, Painter O. Quantum electromechanics of a hypersonic crystal. Nature Nanotechnology. 2019;14(4):334–339. doi:10.1038/s41565-019-0377-2","mla":"Kalaee, Mahmoud, et al. “Quantum Electromechanics of a Hypersonic Crystal.” Nature Nanotechnology, vol. 14, no. 4, Springer Nature, 2019, pp. 334–339, doi:10.1038/s41565-019-0377-2.","ista":"Kalaee M, Mirhosseini M, Dieterle PB, Peruzzo M, Fink JM, Painter O. 2019. Quantum electromechanics of a hypersonic crystal. Nature Nanotechnology. 14(4), 334–339.","chicago":"Kalaee, Mahmoud, Mohammad Mirhosseini, Paul B. Dieterle, Matilda Peruzzo, Johannes M Fink, and Oskar Painter. “Quantum Electromechanics of a Hypersonic Crystal.” Nature Nanotechnology. Springer Nature, 2019. https://doi.org/10.1038/s41565-019-0377-2."},"title":"Quantum electromechanics of a hypersonic crystal","author":[{"last_name":"Kalaee","full_name":"Kalaee, Mahmoud","first_name":"Mahmoud"},{"first_name":"Mohammad","full_name":"Mirhosseini, Mohammad","last_name":"Mirhosseini"},{"last_name":"Dieterle","full_name":"Dieterle, Paul B.","first_name":"Paul B."},{"full_name":"Peruzzo, Matilda","orcid":"0000-0002-3415-4628","last_name":"Peruzzo","first_name":"Matilda","id":"3F920B30-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M","last_name":"Fink"},{"first_name":"Oskar","full_name":"Painter, Oskar","last_name":"Painter"}],"external_id":{"isi":["000463195700014"]},"article_processing_charge":"No","quality_controlled":"1","publisher":"Springer Nature","oa":1,"day":"01","publication":"Nature Nanotechnology","isi":1,"year":"2019","date_published":"2019-04-01T00:00:00Z","doi":"10.1038/s41565-019-0377-2","date_created":"2019-02-24T22:59:21Z","page":"334–339","_id":"6053","status":"public","article_type":"original","type":"journal_article","date_updated":"2023-08-24T14:48:08Z","department":[{"_id":"JoFi"}],"oa_version":"Submitted Version","abstract":[{"lang":"eng","text":"Recent technical developments in the fields of quantum electromechanics and optomechanics have spawned nanoscale mechanical transducers with the sensitivity to measure mechanical displacements at the femtometre scale and the ability to convert electromagnetic signals at the single photon level. A key challenge in this field is obtaining strong coupling between motion and electromagnetic fields without adding additional decoherence. Here we present an electromechanical transducer that integrates a high-frequency (0.42 GHz) hypersonic phononic crystal with a superconducting microwave circuit. The use of a phononic bandgap crystal enables quantum-level transduction of hypersonic mechanical motion and concurrently eliminates decoherence caused by acoustic radiation. Devices with hypersonic mechanical frequencies provide a natural pathway for integration with Josephson junction quantum circuits, a leading quantum computing technology, and nanophotonic systems capable of optical networking and distributing quantum information."}],"month":"04","intvolume":" 14","scopus_import":"1","main_file_link":[{"url":"https://authors.library.caltech.edu/92123/","open_access":"1"}],"language":[{"iso":"eng"}],"publication_identifier":{"eissn":["1748-3395"],"issn":["1748-3387"]},"publication_status":"published","volume":14,"issue":"4"}]