US 12,073,158 B2
Quantum noise process analysis method, system, storage medium, and electronic device
Yuqin Chen, Shenzhen (CN); Changyu Hsieh, Shenzhen (CN); and Shengyu Zhang, Shenzhen (CN)
Assigned to TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed by TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed on Nov. 8, 2021, as Appl. No. 17/521,162.
Application 17/521,162 is a continuation of application No. PCT/CN2021/101419, filed on Jun. 22, 2021.
Claims priority of application No. 202010882560.X (CN), filed on Aug. 28, 2020.
Prior Publication US 2022/0067253 A1, Mar. 3, 2022
Int. Cl. G06F 30/33 (2020.01); G06F 119/10 (2020.01); G06N 10/00 (2022.01)
CPC G06F 30/33 (2020.01) [G06N 10/00 (2019.01); G06F 2119/10 (2020.01)] 16 Claims
OG exemplary drawing
 
1. A quantum noise process analysis method, executed by an electronic device, the method comprising:
preparing a set of quantum initial states;
respectively inputting the prepared quantum initial states into a plurality of first circuits to obtain a plurality of first quantum output states, the first circuits each comprising at least one noise evolution gate and a projection test gate corresponding to each noise evolution gate, and different first circuits comprising different numbers of noise evolution gates;
determining a dynamical map eigenspectrum comprising a first error according to a functional correspondence of a dynamical map eigenspectrum based on a quantum noise process between the plurality of first quantum output states and the quantum initial states;
respectively inputting the prepared quantum initial states into a plurality of second circuits to obtain a plurality of second quantum output states, the second circuits each comprising at least one noise evolution gate and a dual projection test gate corresponding to each noise evolution gate, and different second circuits comprising different numbers of noise evolution gates;
determining a dynamical map eigenspectrum comprising a second error according to a functional correspondence of the dynamical map eigenspectrum based on the quantum noise process between the plurality of second quantum output states and the quantum initial states; and
determining the dynamical map eigenspectrum of the quantum noise process according to the dynamical map eigenspectrum comprising the first error and the dynamical map eigenspectrum comprising the second error.