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.

Date of Patent:
Feb. 13, 2024

Filed:

Aug. 03, 2021
Applicant:

Qunasys Inc., Tokyo, JP;

Inventors:

Yohei Ibe, Tokyo, JP;

Yuya Nakagawa, Tokyo, JP;

Takahiro Yamamoto, Tokyo, JP;

Kosuke Mitarai, Tokyo, JP;

Assignee:

QUNASYS INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/06 (2006.01); G06N 10/00 (2022.01); G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
G06N 10/00 (2019.01); G06F 15/16 (2013.01);
Abstract

A quantum computer executes quantum measurement of <ψ|P|ψ>, <ψ|U|ψ>, <ψ|U|ψ>, <ψ|P|ψ>, and <ψ|PP|ψ< below based on a quantum state pair configured by a first quantum state ψand a second quantum state ψ, and outputs measurement results of the quantum measurement. A classical computer computes a transition amplitude |<ψ|A|ψ>|based on measurement results for <ψ|P|ψ>, <ψ|U|ψ>, <ψ|U|ψ>, <ψ|P|ψ>, and <ψ|PP|ψ>, wherein A is a physical quantity for computation of transition amplitude, i and j are indices for identifying a and P, a is a real number, P is a tensor product of a Pauli matrix, U is a unitary gate, and <ψ|ψ>=0.


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