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.:
Date of Patent:
Jul. 14, 2026
Filed:
Mar. 29, 2022
Nec Corporation, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A superconducting quantum circuit includes first to fourth qubits, and a coupler including first and second electrodes and a nonlinear element bridging the first and second electrodes, wherein each of the first to fourth qubits includes a resonator including a SQUID loop circuit and a capacitor connected in parallel to the loop circuit, the first and second qubits and the third and fourth qubits capacitively coupled to the first and second electrodes of the coupler, respectively, wherein a magnitude relationship among a capacitance value C of a capacitive coupling between each of the first to fourth qubits and the coupler, a capacitance value Cof the capacitor connected in parallel to the loop circuit for each of the first to fourth qubits, and a capacitance value Cbetween the first and second electrodes of the coupler, is set to C>C>C.