Patent · US Active

System and method for circuit quantum electrodynamics measurement

US9692423B2 · kind B2 · utility

58Cited by

11References

20Claims

0Family size

Assignees

Wisconsin Alumni Research Foundation · US
UNIVERSITAT DES SAARLANDES · DE

Inventors

Robert McDermott · Lompoc, US
Britton Plourde · Jamesville, US
Maxim George Vavilov · Elmsford, US
Frank Karsten Wilhelm-Mauch · Riegelsberg, DE
Luke Colin Gene Govia · Somerville, US
Emily Pritchett · Armonk, US

Key dates

Filing date	Dec 29, 2014
Grant date	Jun 27, 2017
Priority date	—
Expiry date	Dec 29, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH03K19/1958
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A system for quantum computation and a readout method using the same are provided. In some aspects, the system includes at least one qubit circuit coupled to a resonant cavity, wherein each of the at least one qubit circuit is described by multiple quantum states, and a controller configured to provide microwave irradiation to the resonant cavity such that a quantum state information of the at least one qubit circuit is transferred to a resonant cavity occupation. The system also includes a readout circuit, coupled to the resonant cavity, configured to receive signals corresponding to the resonant cavity occupation, and generate an output indicative of the quantum states of the at least one qubit circuit. Optionally, the system further includes at least one single flux quantum (“SFQ”) circuit coupled to the readout circuit and configured to receive the output therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.