{"oa":1,"oa_version":"Preprint","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","date_created":"2023-07-26T11:17:20Z","title":"Radio frequency driven superconducting diode and parity conserving  Cooper pair transport in a two-dimensional germanium hole gas","related_material":{"record":[{"status":"public","id":"13286","relation":"dissertation_contains"}]},"status":"public","type":"preprint","day":"13","article_processing_charge":"No","month":"06","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2024-02-07T07:52:32Z","publication_status":"submitted","date_published":"2023-06-13T00:00:00Z","department":[{"_id":"GeKa"},{"_id":"M-Shop"}],"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2306.07109","open_access":"1"}],"abstract":[{"text":"Superconductor/semiconductor hybrid devices have attracted increasing\r\ninterest in the past years. Superconducting electronics aims to complement\r\nsemiconductor technology, while hybrid architectures are at the forefront of\r\nnew ideas such as topological superconductivity and protected qubits. In this\r\nwork, we engineer the induced superconductivity in two-dimensional germanium\r\nhole gas by varying the distance between the quantum well and the aluminum. We\r\ndemonstrate a hard superconducting gap and realize an electrically and flux\r\ntunable superconducting diode using a superconducting quantum interference\r\ndevice (SQUID). This allows to tune the current phase relation (CPR), to a\r\nregime where single Cooper pair tunneling is suppressed, creating a $ \\sin\r\n\\left( 2 \\varphi \\right)$ CPR. Shapiro experiments complement this\r\ninterpretation and the microwave drive allows to create a diode with $ \\approx\r\n100 \\%$ efficiency. The reported results open up the path towards monolithic\r\nintegration of spin qubit devices, microwave resonators and (protected)\r\nsuperconducting qubits on a silicon technology compatible platform.","lang":"eng"}],"year":"2023","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"keyword":["Mesoscale and Nanoscale Physics"],"acknowledgement":"The authors acknowledge Alexander Brinkmann, Alessandro Crippa, Andrew Higginbotham, Andrea Iorio, Giordano\r\nScappucci and Christian Schonenberger for helpful discussions. We thank Marcel Verheijen for the support in the\r\nTEM analysis. This research and related results were made\r\npossible with the support of the NOMIS Foundation. It was\r\nsupported by the Scientific Service Units of ISTA through resources provided by the MIBA Machine Shop and the\r\nnanofabrication facility, the European Union’s Horizon 2020\r\nresearch and innovation programme under Grant Agreement\r\nNo 862046, the HORIZON-RIA 101069515 project and the\r\nFWF Projects #P-32235, #P-36507 and #F-8606. R.S.S.\r\nacknowledges Spanish CM “Talento Program” Project No.\r\n2022-T1/IND-24070.","ddc":["530"],"project":[{"name":"TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS","_id":"237E5020-32DE-11EA-91FC-C7463DDC885E","grant_number":"862046","call_identifier":"H2020"},{"grant_number":"P32235","name":"Towards scalable hut wire quantum devices","_id":"237B3DA4-32DE-11EA-91FC-C7463DDC885E","call_identifier":"FWF"},{"grant_number":"P36507","name":"Merging spin and superconducting qubits in planar Ge","_id":"bd8bd29e-d553-11ed-ba76-f0070d4b237a"},{"grant_number":"F8606","name":"Conventional and unconventional topological superconductors","_id":"34a66131-11ca-11ed-8bc3-a31681c6b03e"},{"_id":"bd5b4ec5-d553-11ed-ba76-a6eedb083344","name":"Protected states of quantum matter"}],"doi":"10.48550/arXiv.2306.07109","author":[{"full_name":"Valentini, Marco","id":"C0BB2FAC-D767-11E9-B658-BC13E6697425","first_name":"Marco","last_name":"Valentini"},{"first_name":"Oliver","last_name":"Sagi","id":"71616374-A8E9-11E9-A7CA-09ECE5697425","full_name":"Sagi, Oliver"},{"full_name":"Baghumyan, Levon","first_name":"Levon","last_name":"Baghumyan"},{"last_name":"Gijsel","first_name":"Thijs de","full_name":"Gijsel, Thijs de"},{"first_name":"Jason","last_name":"Jung","full_name":"Jung, Jason","id":"4C9ACE7A-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Calcaterra","first_name":"Stefano","full_name":"Calcaterra, Stefano"},{"last_name":"Ballabio","first_name":"Andrea","full_name":"Ballabio, Andrea"},{"last_name":"Servin","first_name":"Juan Aguilera","full_name":"Servin, Juan Aguilera"},{"last_name":"Aggarwal","first_name":"Kushagra","full_name":"Aggarwal, Kushagra","id":"b22ab905-3539-11eb-84c3-fc159dcd79cb","orcid":"0000-0001-9985-9293"},{"full_name":"Janik, Marian","id":"396A1950-F248-11E8-B48F-1D18A9856A87","last_name":"Janik","first_name":"Marian"},{"first_name":"Thomas","last_name":"Adletzberger","full_name":"Adletzberger, Thomas","id":"38756BB2-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Souto, Rubén Seoane","first_name":"Rubén Seoane","last_name":"Souto"},{"last_name":"Leijnse","first_name":"Martin","full_name":"Leijnse, Martin"},{"full_name":"Danon, Jeroen","first_name":"Jeroen","last_name":"Danon"},{"full_name":"Schrade, Constantin","last_name":"Schrade","first_name":"Constantin"},{"last_name":"Bakkers","first_name":"Erik","full_name":"Bakkers, Erik"},{"full_name":"Chrastina, Daniel","last_name":"Chrastina","first_name":"Daniel"},{"full_name":"Isella, Giovanni","first_name":"Giovanni","last_name":"Isella"},{"orcid":"0000-0001-8342-202X","id":"38DB5788-F248-11E8-B48F-1D18A9856A87","full_name":"Katsaros, Georgios","last_name":"Katsaros","first_name":"Georgios"}],"publication":"arXiv","external_id":{"arxiv":["2306.07109"]},"ec_funded":1,"citation":{"short":"M. Valentini, O. Sagi, L. Baghumyan, T. de Gijsel, J. Jung, S. Calcaterra, A. Ballabio, J.A. Servin, K. Aggarwal, M. Janik, T. Adletzberger, R.S. Souto, M. Leijnse, J. Danon, C. Schrade, E. Bakkers, D. Chrastina, G. Isella, G. Katsaros, ArXiv (n.d.).","ista":"Valentini M, Sagi O, Baghumyan L, Gijsel T de, Jung J, Calcaterra S, Ballabio A, Servin JA, Aggarwal K, Janik M, Adletzberger T, Souto RS, Leijnse M, Danon J, Schrade C, Bakkers E, Chrastina D, Isella G, Katsaros G. Radio frequency driven superconducting diode and parity conserving  Cooper pair transport in a two-dimensional germanium hole gas. arXiv, 2306.07109.","chicago":"Valentini, Marco, Oliver Sagi, Levon Baghumyan, Thijs de Gijsel, Jason Jung, Stefano Calcaterra, Andrea Ballabio, et al. “Radio Frequency Driven Superconducting Diode and Parity Conserving  Cooper Pair Transport in a Two-Dimensional Germanium Hole Gas.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/arXiv.2306.07109\">https://doi.org/10.48550/arXiv.2306.07109</a>.","apa":"Valentini, M., Sagi, O., Baghumyan, L., Gijsel, T. de, Jung, J., Calcaterra, S., … Katsaros, G. (n.d.). Radio frequency driven superconducting diode and parity conserving  Cooper pair transport in a two-dimensional germanium hole gas. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/arXiv.2306.07109\">https://doi.org/10.48550/arXiv.2306.07109</a>","ama":"Valentini M, Sagi O, Baghumyan L, et al. Radio frequency driven superconducting diode and parity conserving  Cooper pair transport in a two-dimensional germanium hole gas. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/arXiv.2306.07109\">10.48550/arXiv.2306.07109</a>","ieee":"M. Valentini <i>et al.</i>, “Radio frequency driven superconducting diode and parity conserving  Cooper pair transport in a two-dimensional germanium hole gas,” <i>arXiv</i>. .","mla":"Valentini, Marco, et al. “Radio Frequency Driven Superconducting Diode and Parity Conserving  Cooper Pair Transport in a Two-Dimensional Germanium Hole Gas.” <i>ArXiv</i>, 2306.07109, doi:<a href=\"https://doi.org/10.48550/arXiv.2306.07109\">10.48550/arXiv.2306.07109</a>."},"language":[{"iso":"eng"}],"article_number":"2306.07109","_id":"13312"}