ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,537, issued on Aug. 12, was assigned to CISCO TECHNOLOGY INC. (San Jose, Calif.).

"Photonic one-way quantum repeater" was invented by Hassan Shapourian (San Mateo, Calif.) and Daoheng Niu (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quantum repeater forwards quantum information along with measurement results, enabling a destination endpoint to recover the original quantum information. The quantum repeater receives an input graph state encoding at least one logical qubit from a source endpoint. The quantum repeater generates a first multi-photonic graph state and entangles the input graph state with the first graph state. The quant...