ISING MODEL CALCULATION DEVICE

WIPO Patent Application WO/2021/201279

A1

In order to address an issue that an unsolved problem is caused in a conventional coherent Ising machine in which a term, which expresses a magnetic field at each site, is not able to be implemented, the present invention provides an Ising model calculation device comprising a push-pull-type optical modulator in which a role corresponding to "a local magnetic field" can be implemented by adjusting an operation point. The calculation device of the present disclosure is characterized by implementing an item, which expresses a magnetic field, at each site by adding, to the conventional coherent Ising machine, a function for simulating the magnetic field item. Specifically, light having the amplitude of a predetermined sign is input in the conventional coherent Ising machine by dislocating an operation point of the push-pull-type optical modulator. When the operation point is dislocated to a + direction, DOPO into which the light is injected considerably tends to oscillate at 0 phase, and becomes reversed when the operation point is dislocated to a minus direction.

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TAKESUE HIROKI (JP)
INAGAKI TAKAHIRO (JP)
HONJO TOSHIMORI (JP)
INABA KENSUKE (JP)
UTSUNOMIYA SHOKO (JP)
TAMATE SHUHEI (JP)

PCT/JP2021/014330

October 07, 2021

April 02, 2021

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NIPPON TELEGRAPH & TELEPHONE (JP)
INTER UNIV RESEARCH INSTITUTE CORPORATION RESEARCH ORGANIZATION OF INFORMATION AND SYSTEMS (JP)

G02F1/39; G02F3/00; G06E3/00; G06N99/00

WO2017047666A1

2017-03-23

JP2020038300A	2020-03-12
JP2017073106A	2017-04-13

TANI & ABE, P.C. (JP)

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