US Patent Issued to Google on Oct. 27 for "Cascade protocol for iSWAP gate in a two-qubit system" (California, South Dakota Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,775,863, issued on Oct. 27, was assigned to Google LLC (Mountain View, Calif.).

"Cascade protocol for iSWAP gate in a two-qubit system" was invented by Vadim Smelyanskiy (Mountain View, Calif.), Andre Petukhov (Rapid City, S.D.), Rami Barends (San Diego) and Sergio Boixo Castrillo (Rancho Palos Verdes, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems and apparatus for implementing iSWAP quantum logic gates between a first qubit and a second qubit. In one aspect, a method includes implementing a cascade schedule that defines a trajectory of a detuning between a frequency of the first qubit and a frequency of the second qubit. Implem...