US Patent Issued to Microsoft Technology Licensing on Sept. 15 for "Doubly controlled iX circuit" (Swiss, American Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,737,656, issued on Sept. 15, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Doubly controlled iX circuit" was invented by Mathias Soeken (Montreux, Switzerland), Thomas Haener (Zug, Switzerland), Vadym Kliuchnikov (Redmond, Wash.) and Martin Henri Roetteler (Woodinville, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quantum computing device including a doubly controlled iX (CCiX) circuit. The CCiX circuit may be configured to, in a preparation stage, prepare a plurality of magic states. The CCiX circuit may be further configured to receive a plurality of input qubit states including a first control qubit state, a second ...