Pulse Design for Two-Qubit Gates in Superconducting Circuits
Despite tremendous progress towards achieving low error rates with superconducting qubits, error-prone two-qubit gates remain a bottleneck in realizing large-scale quantum computers. To boost the two-qubit gate fidelity to the highest attainable levels given limited coherence time, it is essential t...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2023
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| Online Access: | https://hdl.handle.net/1721.1/151476 |
| _version_ | 1826215324843769856 |
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| author | Ding, Qi |
| author2 | Oliver, William D. |
| author_facet | Oliver, William D. Ding, Qi |
| author_sort | Ding, Qi |
| collection | MIT |
| description | Despite tremendous progress towards achieving low error rates with superconducting qubits, error-prone two-qubit gates remain a bottleneck in realizing large-scale quantum computers. To boost the two-qubit gate fidelity to the highest attainable levels given limited coherence time, it is essential to develop a systematic framework to optimize protocols for implementing two-qubit gates. In this thesis, we formulate the design of the control trajectory for baseband controlled phase gates in superconducting circuits into a pulse design problem. Our research indicates that the Chebyshev trajectories – the trajectories based on the Chebyshev pulse and weighted Chebyshev approximation – have the potential to outperform the Slepian trajectories based on the Slepian pulse, which are currently widely used in quantum experiments. |
| first_indexed | 2024-09-23T16:23:58Z |
| format | Thesis |
| id | mit-1721.1/151476 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T16:23:58Z |
| publishDate | 2023 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1514762023-08-01T03:04:36Z Pulse Design for Two-Qubit Gates in Superconducting Circuits Ding, Qi Oliver, William D. Oppenheim, Alan V. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Despite tremendous progress towards achieving low error rates with superconducting qubits, error-prone two-qubit gates remain a bottleneck in realizing large-scale quantum computers. To boost the two-qubit gate fidelity to the highest attainable levels given limited coherence time, it is essential to develop a systematic framework to optimize protocols for implementing two-qubit gates. In this thesis, we formulate the design of the control trajectory for baseband controlled phase gates in superconducting circuits into a pulse design problem. Our research indicates that the Chebyshev trajectories – the trajectories based on the Chebyshev pulse and weighted Chebyshev approximation – have the potential to outperform the Slepian trajectories based on the Slepian pulse, which are currently widely used in quantum experiments. S.M. 2023-07-31T19:42:41Z 2023-07-31T19:42:41Z 2023-06 2023-07-13T14:20:12.655Z Thesis https://hdl.handle.net/1721.1/151476 In Copyright - Educational Use Permitted Copyright retained by author(s) https://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Ding, Qi Pulse Design for Two-Qubit Gates in Superconducting Circuits |
| title | Pulse Design for Two-Qubit Gates in Superconducting Circuits |
| title_full | Pulse Design for Two-Qubit Gates in Superconducting Circuits |
| title_fullStr | Pulse Design for Two-Qubit Gates in Superconducting Circuits |
| title_full_unstemmed | Pulse Design for Two-Qubit Gates in Superconducting Circuits |
| title_short | Pulse Design for Two-Qubit Gates in Superconducting Circuits |
| title_sort | pulse design for two qubit gates in superconducting circuits |
| url | https://hdl.handle.net/1721.1/151476 |
| work_keys_str_mv | AT dingqi pulsedesignfortwoqubitgatesinsuperconductingcircuits |