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:
Jan. 21, 2025

Filed:

Nov. 03, 2020
Applicant:

Iqm Finland Oy, Espoo, FI;

Inventors:

Tianyi Li, Espoo, FI;

Kok Wai Chan, Espoo, FI;

Kuan Yen Tan, Espoo, FI;

Jan Goetz, Espoo, FI;

Mikko Möttönen, Espoo, FI;

Assignee:

IQM FINLAND OY, Espoo, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06N 10/40 (2022.01); H01L 33/04 (2010.01); H05K 7/20 (2006.01);
U.S. Cl.
CPC ...
G06N 10/40 (2022.01); H01L 33/04 (2013.01); H05K 7/20372 (2013.01); H05K 7/20381 (2013.01);
Abstract

A method, system, and arrangement for resetting qubits are disclosed. An example system includes one or more quantum circuit refrigerators for resetting qubits. Each of the quantum circuit refrigerators includes a tunneling junction and a control input for receiving a control signal. Photon-assisted single-electron tunneling takes place across the respective tunneling junction in response to a control signal. Capacitive or inductive coupling elements between the qubits and the quantum circuit refrigerators couple each qubit to the quantum circuit refrigerator(s). The qubits, quantum circuit refrigerators, and coupling elements are located in a cryogenically cooled environment. A common control signal line to the control inputs crosses into the cryogenically cooled environment from a room temperature environment.


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