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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 11417822 B1

PDFFull Text
Date of Patent:
Aug. 16, 2022

Filed:

Dec. 17, 2019

Frequency multiplexing for qubit readout

Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Nicholas Torleiv Bronn, Long Island City, NY (US);

Daniela Florentina Bogorin, Syracuse, NY (US);

Patryk Gumann, Tarrytown, NY (US);

Sean Hart, Tarrytown, NY (US);

Salvatore Bernardo Olivadese, Stamford, CT (US);

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);

Attorneys:

Intelletek Law Group, PLLC

Gabriel Daniel, Esq.

Primary Examiner:

Aaron J Gray

Int. Cl.
CPC ...
H01L 39/22 (2006.01); H01L 39/02 (2006.01); H01L 39/04 (2006.01); H01L 27/18 (2006.01); G06N 10/00 (2022.01); H03F 19/00 (2006.01); H01L 39/24 (2006.01); H03K 19/195 (2006.01); B82Y 10/00 (2011.01); G06N 10/40 (2022.01);
U.S. Cl.
CPC ...
H01L 39/223 (2013.01); B82Y 10/00 (2013.01); G06N 10/00 (2019.01); H01L 27/18 (2013.01); H01L 39/025 (2013.01); H01L 39/045 (2013.01); H01L 39/2493 (2013.01); H03F 19/00 (2013.01); H03K 19/195 (2013.01); G06N 10/40 (2022.01); H03F 2200/198 (2013.01);
Abstract

A system includes a quantum processor includes a plurality of qubits. For each qubit, there is a circulator operative to receive a control signal and an output signal from the qubit. An isolator is coupled to an output of the circulator. A quantum-limited amplifier is coupled to an output of the isolator and configured to provide an output of the qubit. A multiplexor (MUX) is configured to frequency multiplex the outputs of at least two of the plurality of qubits as a single output of the quantum processor.

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