Pulse Design for Two-Qubit Gates in Superconducting Circuits
Author(s)
Ding, Qi![Thumbnail](/bitstream/handle/1721.1/151476/ding-qding-sm-eecs-2023-thesis.pdf.jpg?sequence=3&isAllowed=y)
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Advisor
Oliver, William D.
Oppenheim, Alan V.
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Show full item recordAbstract
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.
Date issued
2023-06Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer SciencePublisher
Massachusetts Institute of Technology