US Patent Issued to HUAWEI TECHNOLOGIES CANADA on April 7 for "Methods and systems for a 2-qubit multi-user quantum key distribution protocol" (Canadian Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,062, issued on April 7, was assigned to HUAWEI TECHNOLOGIES CANADA Co. LTD. (Kanata, Canada).

"Methods and systems for a 2-qubit multi-user quantum key distribution protocol" was invented by Wen Tong (Ottawa) and Sheng Sun (Kanata, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of quantum key distribution making use of 2-qubit entanglement, by which one entangled qubit is sent from an operator O to Alice and the other entangled qubit is sent from operator O to Bob, making for key-sharing among three parties (multi-user quantum key distribution, i.e. MU QKD). Alice and Bob each measures a respective sequence of qubits randomly along e...