DOE OSTI · 3002252
CaliQEC: In-situ Qubit Calibration for Surface Code Quantum Error Correction
Abstract
Quantum Error Correction (QEC) is essential for fault-tolerant, large-scale quantum computation. However, error drift in qubits undermines QEC performance during long computations, necessitating frequent calibration. Conventional calibration methods disrupt quantum states, requiring system downtime and rendering in situ calibration impractical. To address this challenge, we propose QECali, a novel framework that enables in situ calibration for surface codes. Our evaluation demonstrates that QECali introduces modest qubit overhead and negligible increases in execution time, offering the first practical solution for in situ calibration in surface code based quantum computation.
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Fang, Xiang [University of California, Santa Barbara], Yin, Keyi [University of California, San Diego], Zhu, Yuchen [University of California, San Diego], Ruan, Jixuan [University of California, San Diego], Tullsen, Dean [University of California, San Diego], Liang, Zhiding [Rensselaer Polytechnic Institute (RPI)], Sornborger, Andrew [Los Alamos National Laboratory (LANL)], Li, Ang [Pacific Northwest National Laboratory (PNNL)], Humble, Travis [ORNL] (ORCID:0000000294490498), Ding, Yufei [University of California, San Diego], Shi, Yunong [AWS Quantum Technologies]. 2025-06-01. CaliQEC: In-situ Qubit Calibration for Surface Code Quantum Error Correction. https://doi.org/10.1145/3695053.3731042
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