公开(公告)号：US20230189666A1

公开(公告)日：2023-06-15

申请号：US17926073

申请日：2021-04-08

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Atsushi NOGUCHI ,  Alto OSADA ,  Yasunobu NAKAMURA

IPC: H10N69/00 ,  G06N10/20

CPC classification number: H10N69/00 ,  G06N10/20

Abstract: A quantum gate device includes a first superconducting circuit which includes at least one of Josephson devices in an annular circuit including a superconducting wire and resonates at a first resonance frequency, a second superconducting circuit which includes at least one of Josephson devices in an annular circuit including a superconducting wire and resonates at a second resonance frequency, a connection unit which includes a capacitor and a superconducting wire provided at each electrode of the capacitor and connects the first and second circuits, a magnetic field application means applying a magnetic field to one or both of the first and second circuits, a quantum gate control electromagnetic wave irradiation unit irradiating one of the first and second circuits with a control electromagnetic wave, and an unnecessary transition suppression electromagnetic wave irradiation unit irradiating one of the first and second circuits with an unnecessary interaction suppression electromagnetic wave.