Patent ID: 11879950
Assignee: D-WAVE SYSTEMS INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 13:
14. A method of loading a superconducting flux storage device with a magnetic flux quantum, the superconducting flux storage device comprising a superconducting flux storage loop interrupted by a compound Josephson junction (CJJ), the method comprising:
setting a current bias line to a first current bias value;
setting a low-frequency address line to a first address line value;
setting the current bias line to a second current bias value to cause a current bias to be applied to the superconducting flux storage device;
setting the low-frequency address line to a second address line value to cause a flux bias to be applied to the CJJ of the superconducting flux storage device;
applying a first high-frequency pulse to the superconducting flux storage device by a microwave transmission line and at least a first superconducting resonator, the microwave transmission line communicatively coupled to the first superconducting resonator, and the first superconducting resonator communicatively coupled to the superconducting flux storage device, to cause a flux quantum to be added to the CJJ of the superconducting flux storage device;
setting the low-frequency address line to a third address line value to cause the flux quantum to be loaded into the superconducting flux storage loop of the superconducting flux storage device;
returning the current bias line to the first current bias value; and
returning the low-frequency address line to the first address line value, wherein applying a first high-frequency pulse to the superconducting flux storage device by a microwave transmission line and a first superconducting resonator includes causing a combined low-frequency and high-frequency signal level applied to the superconducting flux storage device to exceed a predetermined upper threshold.