ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,229,634, issued on Feb. 18, was assigned to INTERNATIONAL BUSINESS MACHINES Corp. (Armonk, N.Y.).
"Stark shift cancellation" was invented by Abhinav Kandala (Yorktown Heights, N.Y.), David C. Mckay (Ossining, N.Y.), Srikanth Srinivasan (Mount Kisco, N.Y.), Easwar Magesan (Mount Kisco, N.Y.) and Jay Michael Gambetta (Yorktown Heights, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and techniques that facilitate Stark shift cancellation are provided. In various embodiments, a system can comprise a control qubit that is coupled to a target qubit. In various cases, the control qubit can be driven by a first tone that entangles the control qubit...