摘要
The error model of a quantum computer is essential for optimizing quantum algorithms to minimize the impact of errors using quantum error correction or error mitigation.Noise with temporal correlations,e.g.low-frequency noise and context-dependent noise,is common in quantum computation devices and sometimes even significant.However,conventional tomography methods have not been developed for obtaining an error model describing temporal correlations.In this paper,we propose self-consistent tomography protocols to obtain a model of temporally correlated errors,and we demonstrate that our protocols are efficient for low-frequency noise and context-dependent noise.
基金
supported by the National Key R&D Program of China(Grant No.2016YFA0301200)
the National Basic Research Program of China(Grant No.2014CB921403)
supported by Science Challenge Project(Grant No.TZ2017003)
the National Natural Science Foundation of China(Grants No.11774024,No.11534002,and No.U1530401)
supported by National Natural Science Foundation of China(Grant No.11875050,12088101)
NSAF(Grant No.U1930403)。
