Hybrid circuits on planar Germanium (Record no. 768045)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02326ntm a22004217a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | AT-ISTA |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250911124310.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250911s2024 au ||||| m||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | ISTA |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Sagi, Oliver |
| 9 (RLIN) | 1084209 |
| 245 ## - TITLE STATEMENT | |
| Title | Hybrid circuits on planar Germanium |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher, distributor, etc. | Institute of Science and Technology Austria |
| Date of publication, distribution, etc. | 2024 |
| 500 ## - GENERAL NOTE | |
| General note | Thesis |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | Abstract |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | Acknowledgements |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | About the Author |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | List of Collaborators and Publications |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | Table of Contents |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | List of Figures |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | List of Tables |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 1 Motivation |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 2 Theoretical background |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 3 Measurement setup |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 4 Hybrid Josephson junctions |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 5 CPW resonators on SiGe substrate |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 6 Towards Ge gatemons |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 7 Ge Gatemons |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | 8 Outlook and Conclusions |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | Bibliography |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | A Additional resonator data |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | B Effect of gate material on JJs |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | C Reference measurements on Si transmons |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | D Rabi anomalies |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | E Fabrication recipes |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The new era of Ge has opened up new possibilities in quantum computing. The maturity of Ge spin qubits is unquestioned, while hybrid semiconductor-superconductor Ge circuits are on track to enter the game. Gate-tunable transmons (gatemons) employing semiconductor Josephson junctions have recently emerged as building blocks for such hybrid quantum circuits. In this thesis, we present a gatemon fabricated in planar Germanium. We induce superconductivity in a two-dimensional hole gas by evaporating aluminum atop a thin spacer, which separates the superconductor from the Ge quantum well. The Josephson junction is then integrated into an Xmon circuit and capacitively coupled to a transmission line resonator. We showcase the qubit tunability in a broad frequency range with resonator and two-tone spectroscopy. Time-domain characterizations reveal energy relaxation and coherence times up to 75 ns. Our results, combined with the recent advances in the spin qubit field, pave the way towards novel hybrid and protected qubits in a group IV, CMOS-compatible material. |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://doi.org/10.15479/at:ista:18076">https://doi.org/10.15479/at:ista:18076</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Home library | Current library | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Not Lost | Dewey Decimal Classification | Library | Library | 11/09/2025 | Quiet Room | AT-ISTA#003296 | 16/09/2025 | 11/09/2025 | Book |