Patent ID: 11962690
Assignee: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A system comprising:
a transceiver comprising:
a light source configured to generate a faint pulse; and
a state randomizer configured to impart a random state transformation to one or more qubits associated with the faint pulse prior to transmission of the faint pulse over a communication channel;

a quantum bit encoder comprising:
a modulator configured to encode one or more encoded bits on the faint pulse received over the communication channel; and
a mirror to reflect the faint pulse back to the transceiver;

wherein the transceiver is further configured to receive a return pulse through the communication channel, wherein the state randomizer is configured to apply an inverse of the random state transformation to the return pulse;
wherein the transceiver further comprises three or more detectors configured to measure the return pulse at time-gated timeslots associated with possible paths of the return pulse through the transceiver;
wherein reception of the faint pulse from the quantum bit encoder as the return pulse triggers a detector in a first detector subset of the three or more detectors; and
wherein reception of a faked-state pulse from a third party as the return pulse results in a non-zero probability of triggering of a detector in a second detector subset of the three or more detectors.