ALEXANDRIA, Va., July 16 -- United States Patent no. 12,670,429, issued on June 30, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Reducing the sampling cost of quantum error mitigation by computing time-evolved commutators" was invented by Andrew Eddins (San Jose, Calif.), Patrick Julian Tassilo Rall (Boston) and Minh Tran (Cambridge, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method, system, and computer program product for reducing the sampling cost of quantum error mitigation. A map of root errors ("shaded light cone"), where each root error includes a likelihood an error impacts a state of a target qubit(s), is generated by computing time-evolved commutators of local ...