Mitigating crosstalk and residual coupling errors in superconducting quantum processors using many-body localization

• URL: http://arxiv.org/abs/2310.06618v2
• Date: Sun, 15 Oct 2023 12:31:01 GMT
• Title: Mitigating crosstalk and residual coupling errors in superconducting quantum processors using many-body localization
• Authors: Peng Qian, Hong-Ze Xu, Peng Zhao, Xiao Li, Dong E. Liu
• Abstract summary: This study introduces a novel calibration scheme harnessing the principles of Many-Body Localization (MBL) Our MBL-based methodology emerges as a stalwart against noise, notably crosstalk and residual coupling errors. Not only does this approach provide a marked improvement in performance, particularly where specific residue couplings are present, but it also presents a more resource-efficient and cost-effective calibration process.
• Score: 21.175964469657803
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Addressing the paramount need for precise calibration in superconducting quantum qubits, especially in frequency control, this study introduces a novel calibration scheme harnessing the principles of Many-Body Localization (MBL). While existing strategies, such as Google's snake algorithm, have targeted optimization of qubit frequency parameters, our MBL-based methodology emerges as a stalwart against noise, notably crosstalk and residual coupling errors, thereby significantly enhancing quantum processor fidelity and stability without necessitating extensive optimization computation. Not only does this approach provide a marked improvement in performance, particularly where specific residue couplings are present, but it also presents a more resource-efficient and cost-effective calibration process. The research delineated herein affords fresh insights into advanced calibration strategies and propels forward the domain of superconducting quantum computation by offering a robust framework for future explorations in minimizing error and optimizing qubit performance.

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