US 11,990,945 B2
System for clock synchronization with polarization entangled photons
Neal Solmeyer, Plymouth, MN (US); and Chad Fertig, Bloomington, MN (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Jun. 22, 2022, as Appl. No. 17/808,270.
Claims priority of provisional application 63/215,298, filed on Jun. 25, 2021.
Prior Publication US 2022/0416906 A1, Dec. 29, 2022
Int. Cl. H04B 10/70 (2013.01); G02B 6/27 (2006.01); G04F 5/14 (2006.01); G06N 10/60 (2022.01)
CPC H04B 10/70 (2013.01) [G02B 6/2773 (2013.01); G04F 5/14 (2013.01); G06N 10/60 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a quantum light device comprising:
a light source configured to emit a plurality of pairs of photons, wherein each pair of photons of the plurality of pairs of photons occupies a quantum entangled state;
optical circuitry configured to:
receive, from a first wing device, a first set of photons of the plurality of pairs of photons; and
receive, from a second wing device, a second set of photons of the plurality of pairs of photons;
a set of photon detectors configured to receive the first set of photons and the second set of photons from the optical circuitry,
wherein each photon detector of the set of photon detectors is configured to generate a set of time signals, each time signal of the set of time signals representing a time at which the respective photon sensors detects a photon; and processing circuitry configured to:
determine, based on the set of time signals corresponding to each photon detector of the set of photon detectors, whether a time delay value exists in which a Clauser, Home, Shimony and Holt (CHSH) parameter is greater than a threshold CHSH parameter value.