ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,666, issued on Aug. 25, was assigned to Quantum Optics Jena GmbH (Jena, Germany).
"Method for generating quantum keys from multiple receivers" was invented by Oliver de Vries (Jena, Germany) and Rene Heilmann (Schwansee, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for quantum key generation with entangled photon pairs between at least four receivers (4) is proposed, with the following steps: i) generation of entangled photon pairs; ii) splitting the signal photons and the idler photons to quantum channels on the basis of their wavelength and transmitting the signal photons and the idler photons via a splitter (6) and/or switch (7...