Method and apparatus for controlling qubits with single flux quantum logic

US8138784B2 · kind B2 · utility

Assignee

• NORTHROP GRUMMAN SYSTEMS CORPORATION · US

Inventors

• John X. Przybysz · Penn Hills, US
• James E. Baumgardner · Odenton, US
• Aaron A. Pesetski · Gambrills, US
• Donald L. Miller · Export, US
• Quentin P. Herr · Torrance, US

Key dates

• Filing date: Feb 7, 2011
• Grant date: Mar 20, 2012
• Expiry date: Feb 7, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B82Y10/00
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with another qubit or with some quantum logic gate. In another embodiment, the disclosure relates to a method for controlling a qubit with RSFQ logic or through the interface between RSFQ and the qubit.