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:
Apr. 24, 2018

Filed:

Feb. 06, 2014
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventor:

Tatsuya Tomaru, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/548 (2006.01); G06N 99/00 (2010.01);
U.S. Cl.
CPC ...
G06F 7/548 (2013.01); G06N 99/002 (2013.01);
Abstract

A classical technique relying on thermodynamics is used, and spin s, which is a variable, is made to follow a local effective magnetic field Bto bring a system to a ground state of a problem-setting system. The ground state is a solution thereof. At t=0, the effective magnetic field Bis applied rightward in all the sites, and all the spins sare initialized rightward. The magnetic field in the z axis direction and the interaction between spins are gradually applied with time t, which finally brings the spins in the +z direction or the −z direction, and the z components of the spins sbecome s=+1 or −1. In addition, correction parameters originating from quantum mechanical effects are introduced when the direction of the spin sis made to follow the direction of the effective magnetic field Bso as to improve calculation performance.


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