SYSTEMS AND METHODS FOR ADDRESSING DEVICES IN A SUPERCONDUCTING CIRCUIT

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.

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

CPC Classification: G01R33/0354 (using superconductive devices)

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