{"publication_identifier":{"issn":["2663-337X"]},"date_published":"2024-09-18T00:00:00Z","date_created":"2024-09-16T12:58:36Z","project":[{"_id":"bd8bd29e-d553-11ed-ba76-f0070d4b237a","name":"Merging spin and superconducting qubits in planar Ge","grant_number":"P36507"},{"_id":"c0977eea-5a5b-11eb-8a69-a862db0cf4d1","grant_number":"I05060","name":"High impedance circuit quantum electrodynamics with hole spins"},{"name":"Hybrid Semiconductor - Superconductor Quantum Devices","_id":"262116AA-B435-11E9-9278-68D0E5697425"},{"grant_number":"862046","name":"TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS","_id":"237E5020-32DE-11EA-91FC-C7463DDC885E","call_identifier":"H2020"}],"related_material":{"record":[{"status":"public","relation":"part_of_dissertation","id":"17202"}]},"doi":"10.15479/at:ista:18076","year":"2024","status":"public","has_accepted_license":"1","month":"09","author":[{"last_name":"Sagi","id":"71616374-A8E9-11E9-A7CA-09ECE5697425","full_name":"Sagi, Oliver","first_name":"Oliver"}],"publisher":"Institute of Science and Technology Austria","date_updated":"2024-11-18T08:22:33Z","citation":{"ieee":"O. Sagi, “Hybrid circuits on planar Germanium,” Institute of Science and Technology Austria, 2024.","short":"O. Sagi, Hybrid Circuits on Planar Germanium, Institute of Science and Technology Austria, 2024.","mla":"Sagi, Oliver. <i>Hybrid Circuits on Planar Germanium</i>. Institute of Science and Technology Austria, 2024, doi:<a href=\"https://doi.org/10.15479/at:ista:18076\">10.15479/at:ista:18076</a>.","apa":"Sagi, O. (2024). <i>Hybrid circuits on planar Germanium</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:18076\">https://doi.org/10.15479/at:ista:18076</a>","ama":"Sagi O. Hybrid circuits on planar Germanium. 2024. doi:<a href=\"https://doi.org/10.15479/at:ista:18076\">10.15479/at:ista:18076</a>","ista":"Sagi O. 2024. Hybrid circuits on planar Germanium. Institute of Science and Technology Austria.","chicago":"Sagi, Oliver. “Hybrid Circuits on Planar Germanium.” Institute of Science and Technology Austria, 2024. <a href=\"https://doi.org/10.15479/at:ista:18076\">https://doi.org/10.15479/at:ista:18076</a>."},"title":"Hybrid circuits on planar Germanium","type":"dissertation","acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"corr_author":"1","file_date_updated":"2024-09-19T09:20:33Z","oa_version":"Published Version","day":"18","ec_funded":1,"file":[{"creator":"osagi","file_size":86679095,"date_updated":"2024-09-18T14:13:01Z","date_created":"2024-09-18T14:13:01Z","success":1,"file_id":"18093","access_level":"open_access","relation":"main_file","file_name":"OliverSagi_Thesis_pdfa.pdf","content_type":"application/pdf","checksum":"d01d0e2846c2f3ac5bb14d321554a4cd"},{"file_id":"18094","date_created":"2024-09-18T14:14:02Z","date_updated":"2024-09-19T09:20:33Z","creator":"osagi","file_size":172098524,"checksum":"0543f473d509ee545f4ed3a56f742f4b","content_type":"application/x-zip-compressed","file_name":"Thesis_OliverSagi.zip","relation":"source_file","access_level":"local"}],"alternative_title":["ISTA Thesis"],"abstract":[{"lang":"eng","text":"The new era of Ge has opened up new possibilities in quantum computing. The maturity of Ge\r\nspin qubits is unquestioned, while hybrid semiconductor-superconductor Ge circuits are on track\r\nto enter the game. Gate-tunable transmons (gatemons) employing semiconductor Josephson\r\njunctions have recently emerged as building blocks for such hybrid quantum circuits. In this\r\nthesis, we present a gatemon fabricated in planar Germanium. We induce superconductivity\r\nin a two-dimensional hole gas by evaporating aluminum atop a thin spacer, which separates\r\nthe superconductor from the Ge quantum well. The Josephson junction is then integrated\r\ninto an Xmon circuit and capacitively coupled to a transmission line resonator. We showcase\r\nthe qubit tunability in a broad frequency range with resonator and two-tone spectroscopy.\r\nTime-domain characterizations reveal energy relaxation and coherence times up to 75 ns. Our\r\nresults, combined with the recent advances in the spin qubit field, pave the way towards novel\r\nhybrid and protected qubits in a group IV, CMOS-compatible material."}],"oa":1,"article_processing_charge":"No","department":[{"_id":"GradSch"},{"_id":"GeKa"}],"tmp":{"name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","image":"/images/cc_by_nc_sa.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","short":"CC BY-NC-SA (4.0)"},"_id":"18076","license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","language":[{"iso":"eng"}],"page":"111","supervisor":[{"last_name":"Katsaros","id":"38DB5788-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8342-202X","full_name":"Katsaros, Georgios","first_name":"Georgios"}],"ddc":["539"],"publication_status":"published","degree_awarded":"PhD"}