ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,130, issued on April 29, was assigned to Google LLC (Mountain View, Calif.).

"Methods and apparatus for performing phase operations" was invented by Craig Gidney (Goleta, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems, and apparatus for performing phase operations. In one aspect, a method for performing a same phase operation on a first and second qubit using a third qubit prepared in a phased plus state includes: performing a first NOT operation on the third qubit; computing a controlled adder operation on the first, second and third qubit, comprising encoding the result of the controlled adder operation in a fourth qubit; pe...