公开(公告)号：US12204002B2

公开(公告)日：2025-01-21

申请号：US18517174

申请日：2023-11-22

Applicant: D-WAVE SYSTEMS INC.

Inventor： Loren J. Swenson ,  Emile M. Hoskinson ,  Mark H Volkmann ,  Andrew J. Berkley ,  George E. G. Sterling ,  Jed D. Whittaker

IPC: G01R33/00 ,  G01R33/035 ,  G06N10/00 ,  H10N60/12

Abstract: Superconducting integrated circuits may advantageously employ superconducting resonators coupled to a microwave transmission line to efficiently address superconducting flux storage devices. In an XY-addressing scheme, a global flux bias may be applied to a number of superconducting flux storage devices via a low-frequency address line, and individual superconducting flux storage devices addressed via application of high-frequency pulses via resonators driven by the microwave transmission line. Frequency multiplexing can be employed to provide signals to two or more resonators. A low-frequency current bias may be combined with a high-frequency current in one or more superconducting resonators to provide Z-addressing. A low-frequency current bias may be combined with a high-frequency current in one or more superconducting resonators to eliminate a flux bias line. A low-frequency current bias may be used at room temperature to identify the presence of a DC short, an open, and/or an unexpected resistance in a superconducting resonator.