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:
Dec. 30, 2025

Filed:

Sep. 01, 2022
Applicant:

Rigetti & Co, Llc, Berkeley, CA (US);

Inventors:

Eyob A. Sete, Walnut Creek, CA (US);

Stefano Poletto, Orinda, CA (US);

Riccardo Manenti, Berkeley, CA (US);

Angela Q Chen, Oakland, CA (US);

Shobhan Kulshreshtha, Berkeley, CA (US);

Assignee:

Rigetti & Co, LLC, Berkeley, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06N 10/40 (2022.01); G06N 10/20 (2022.01); G06N 10/70 (2022.01); G06N 10/80 (2022.01);
U.S. Cl.
CPC ...
G06N 10/40 (2022.01); G06N 10/20 (2022.01); G06N 10/70 (2022.01); G06N 10/80 (2022.01);
Abstract

In a general aspect, a superconducting quantum processing unit includes a first qubit device, a second qubit device, and a tunable floating coupler device coupled between the first and second qubit devices. Values of a coupling strength of the first and second qubit devices at a plurality of operating points of the tunable floating coupler device are measured. The operating points correspond to respective values of a magnetic flux applied to the tunable floating coupler device. Based on the measured values of the coupling strength, a parking value of the magnetic flux is identified. The parking value of the magnetic flux corresponds to a magnitude of the coupling strength being less than or equal to a threshold value; the threshold value is associated with a target gate fidelity for the superconducting quantum processing unit.


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