US 12,147,872 B2
Quantum noise process analysis method and apparatus, device, and storage medium
Changyu Hsieh, Guangdong (CN); Yuqin Chen, Guangdong (CN); Yicong Zheng, Guangdong (CN); Kaili Ma, Guangdong (CN); and Shengyu Zhang, Guangdong (CN)
Assigned to Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Guangdong (CN)
Filed on Dec. 13, 2023, as Appl. No. 18/538,946.
Application 18/538,946 is a continuation of application No. 17/174,665, filed on Feb. 12, 2021, granted, now 11,893,453.
Application 17/174,665 is a continuation of application No. PCT/CN2020/084897, filed on Apr. 15, 2020.
Claims priority of application No. 201910390722.5 (CN), filed on May 10, 2019.
Prior Publication US 2024/0169228 A1, May 23, 2024
Int. Cl. G06N 10/00 (2022.01); G06N 7/01 (2023.01); G06N 20/00 (2019.01)
CPC G06N 10/00 (2019.01) [G06N 7/01 (2023.01); G06N 20/00 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A quantum noise process analysis method, applicable to a computer device, the method comprising:
performing quantum process tomography (QPT) on quantum noise processes of a plurality of target quantum devices, to obtain dynamical maps of the quantum noise processes, wherein the QPT involves at least one measurement of each of the plurality of target quantum devices;
extracting transfer tensor maps (TTMs) of the quantum noise processes from the dynamical maps, the TTMs being used for representing a dynamical evolution of the quantum noise processes;
calculating a joint dynamical map of the quantum noise processes;
calculating a correlated TTM among the plurality of target quantum devices according to the TTMs; and the joint dynamical map; and
analyzing a source of a correlated noise among the plurality of target quantum devices according to the correlated TTMs.