US 11,672,187 B2
Quantum tuning via permanent magnetic flux elements
Steven J. Holmes, Ossining, NY (US); Devendra K. Sadana, Pleasantville, NY (US); David C. McKay, Ossining, NY (US); Jared Barney Hertzberg, Yorktown Heighls, NY (US); Stephen W. Bedell, Wappingers Falls, NY (US); and Ning Li, White Plains, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Mar. 25, 2020, as Appl. No. 16/829,439.
Prior Publication US 2021/0305480 A1, Sep. 30, 2021
Int. Cl. H01L 39/00 (2006.01); H01L 39/02 (2006.01); G06N 10/00 (2022.01); H01L 29/66 (2006.01); H01L 39/22 (2006.01); G01R 33/035 (2006.01)
CPC H01L 39/025 (2013.01) [G06N 10/00 (2019.01); H01L 29/66977 (2013.01); H01L 39/223 (2013.01); G01R 33/0358 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a qubit device;
a permanent magnet in first proximity to the qubit device and emitting a first magnetic flux onto the qubit device, wherein an operational frequency of the qubit device is based on the first magnetic flux; and
an electromagnet in second proximity to the permanent magnet and emitting a second magnetic flux onto the permanent magnet, wherein the second magnetic flux tunes the first magnetic flux.