US Patent Issued to United States of America, as represented by the Secretary of the Navy on May 5 for "Quantum key distribution protocol with weak measurements" (Maryland, Texas Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,136, issued on May 5, was assigned to United States of America, as represented by the Secretary of the Navy (Arlington, Va.).

"Quantum key distribution protocol with weak measurements" was invented by Jacob M. Farinholt (Bowie, Md.) and James E. Troupe (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quantum key distribution (QKD) receiver is provided for communicating with a transmitter that produces a plurality of entangled photon qubit pairs to send one qubit from each pair randomly alternating between basis states. The receiver includes a first polarized beam splitter, an orthogonal pair of photon detectors, a weak measurement appar...