ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,786, issued on April 8, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Preparation of a CZ state for quantum computation" was invented by Benjamin James Brown (Copenhagen, Denmark), Andrew W. Cross (Yorktown Heights, N.Y.), Riddhi Swaroop Gupta (San Jose, Calif.), Tomas Raphael Jochym-O'Connor (Los Angeles) and Theodore James Yoder (Mohegan Lake, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment of the present invention, a method, system, and computer program product for preparing a CZ state for use in magic state distillation. The embodiment may include initializing a code state across data qubit...