The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Nov. 23, 2022
Tencent Technology (Shenzhen) Company Limited, Shenzhen, CN;
Tsinghua University, Beijing, CN;
Shixin Zhang, Shenzhen, CN;
Zhouquan Wan, Shenzhen, CN;
Shengyu Zhang, Shenzhen, CN;
Hong Yao, Shenzhen, CN;
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen, CN;
Tsinghua University, Beijing, CN;
Abstract
An expectation value estimation method for a quantum system includes: acquiring an output quantum state of n qubits obtained from an input quantum state of the n qubits through a noisy parameterized quantum circuit (PQC); post-processing the output quantum state of the n qubits by using a neural network to obtain expectation values of a plurality of Pauli strings which are obtained by decomposing a target function; calculating an expectation value of the target function under the output quantum state of the n qubits according to the expectation values of the plurality of Pauli strings; adjusting at least a parameter of the neural network until the expectation value of the target function converges; and acquiring, when the expectation value of the target function satisfies a convergence condition, a convergent expectation value of the target function, the convergent expectation value being an expectation value that satisfies the convergence condition.