Pulse Design for Two-Qubit Gates in Superconducting Circuits
Name
ding-qding-sm-eecs-2023-thesis.pdf
Description
Thesis PDF
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2.83 MB
Format
Adobe PDF
Checksum (MD5)
72bd70b6628c27c4383909510006e847
Author(s)
Ding, Qi
Advisor(s)
Oliver, William D.
Oppenheim, Alan V.
Date Issued
June 2023
Publisher
Massachusetts Institute of Technology
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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