Universal Nonadiabatic Control of Small-Gap Superconducting Qubits
© 2020 authors. Published by the American Physical Society. Resonant transverse driving of a two-level system as viewed in the rotating frame couples two degenerate states at the Rabi frequency, an equivalence that emerges in quantum mechanics. While successful at controlling natural and artificial...
| Autores principales: | , , , , , , , , , , |
|---|---|
| Otros Autores: | |
| Formato: | Artículo |
| Lenguaje: | English |
| Publicado: |
American Physical Society (APS)
2021
|
| Acceso en línea: | https://hdl.handle.net/1721.1/133662 |
| _version_ | 1826209040820076544 |
|---|---|
| author | Campbell, Daniel L Shim, Yun-Pil Kannan, Bharath Winik, Roni Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Tahan, Charles Gustavsson, Simon Oliver, William D |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Campbell, Daniel L Shim, Yun-Pil Kannan, Bharath Winik, Roni Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Tahan, Charles Gustavsson, Simon Oliver, William D |
| author_sort | Campbell, Daniel L |
| collection | MIT |
| description | © 2020 authors. Published by the American Physical Society. Resonant transverse driving of a two-level system as viewed in the rotating frame couples two degenerate states at the Rabi frequency, an equivalence that emerges in quantum mechanics. While successful at controlling natural and artificial quantum systems, certain limitations may arise (e.g., the achievable gate speed) due to nonidealities like the counterrotating term. We introduce a superconducting composite qubit (CQB), formed from two capacitively coupled transmon qubits, which features a small avoided crossing - smaller than the environmental temperature - between two energy levels. We control this low-frequency CQB using solely baseband pulses, nonadiabatic transitions, and coherent Landau-Zener interference to achieve fast, high-fidelity, single-qubit operations with Clifford fidelities exceeding 99.7%. We also perform coupled qubit operations between two low-frequency CQBs. This work demonstrates that universal nonadiabatic control of low-frequency qubits is feasible using solely baseband pulses. |
| first_indexed | 2024-09-23T14:16:25Z |
| format | Article |
| id | mit-1721.1/133662 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:16:25Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1336622023-03-15T18:52:52Z Universal Nonadiabatic Control of Small-Gap Superconducting Qubits Campbell, Daniel L Shim, Yun-Pil Kannan, Bharath Winik, Roni Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Tahan, Charles Gustavsson, Simon Oliver, William D Massachusetts Institute of Technology. Research Laboratory of Electronics Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Lincoln Laboratory Massachusetts Institute of Technology. Department of Physics © 2020 authors. Published by the American Physical Society. Resonant transverse driving of a two-level system as viewed in the rotating frame couples two degenerate states at the Rabi frequency, an equivalence that emerges in quantum mechanics. While successful at controlling natural and artificial quantum systems, certain limitations may arise (e.g., the achievable gate speed) due to nonidealities like the counterrotating term. We introduce a superconducting composite qubit (CQB), formed from two capacitively coupled transmon qubits, which features a small avoided crossing - smaller than the environmental temperature - between two energy levels. We control this low-frequency CQB using solely baseband pulses, nonadiabatic transitions, and coherent Landau-Zener interference to achieve fast, high-fidelity, single-qubit operations with Clifford fidelities exceeding 99.7%. We also perform coupled qubit operations between two low-frequency CQBs. This work demonstrates that universal nonadiabatic control of low-frequency qubits is feasible using solely baseband pulses. 2021-10-27T19:54:03Z 2021-10-27T19:54:03Z 2020 2021-01-29T19:44:54Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133662 en 10.1103/PhysRevX.10.041051 Physical Review X Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Physical Society (APS) APS |
| spellingShingle | Campbell, Daniel L Shim, Yun-Pil Kannan, Bharath Winik, Roni Kim, David K Melville, Alexander Niedzielski, Bethany M Yoder, Jonilyn L Tahan, Charles Gustavsson, Simon Oliver, William D Universal Nonadiabatic Control of Small-Gap Superconducting Qubits |
| title | Universal Nonadiabatic Control of Small-Gap Superconducting Qubits |
| title_full | Universal Nonadiabatic Control of Small-Gap Superconducting Qubits |
| title_fullStr | Universal Nonadiabatic Control of Small-Gap Superconducting Qubits |
| title_full_unstemmed | Universal Nonadiabatic Control of Small-Gap Superconducting Qubits |
| title_short | Universal Nonadiabatic Control of Small-Gap Superconducting Qubits |
| title_sort | universal nonadiabatic control of small gap superconducting qubits |
| url | https://hdl.handle.net/1721.1/133662 |
| work_keys_str_mv | AT campbelldaniell universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT shimyunpil universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT kannanbharath universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT winikroni universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT kimdavidk universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT melvillealexander universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT niedzielskibethanym universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT yoderjonilynl universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT tahancharles universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT gustavssonsimon universalnonadiabaticcontrolofsmallgapsuperconductingqubits AT oliverwilliamd universalnonadiabaticcontrolofsmallgapsuperconductingqubits |