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.:

US 12188999 B1

Date of Patent:

Jan. 07, 2025

Filed:

Nov. 01, 2022

Superconducting quantum circuit

Applicant:

Nec Corporation, Tokyo, JP;

Inventor:

Tomohiro Yamaji, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Jas A Sanghera

Int. Cl.

CPC ...

G01R 33/035 (2006.01); G06N 10/40 (2022.01); H10N 60/12 (2023.01); H10N 60/80 (2023.01); H10N 69/00 (2023.01);

U.S. Cl.

CPC ...

G01R 33/0354 (2013.01); G06N 10/40 (2022.01); H10N 60/12 (2023.02); H10N 60/805 (2023.02); H10N 69/00 (2023.02);

Abstract

A superconducting quantum circuit includes a plurality of SQUIDs (Superconducting Quantum Interference Devices) connected in parallel, each of the plurality of SQUIDs including a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction connected in a loop, wherein a junction area of the first Josephson junction and a junction area of the second Josephson junction are different from each other, the plurality of SQUIDs configured to be mutually different in either one or both of: a sum of the junction area of the first Josephson junction and the junction area of the second Josephson junction; and a ratio of the junction area of the first Josephson junction to the junction area of the second Josephson junction.

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