US 11,784,806 B2
Quantum network devices, systems, and methods
Eden Figueroa, Setauket, NY (US); Mehdi Namazi, Brooklyn, NY (US); Mael Flament, Port Jefferson, NY (US); and Sonali Gera, Port Jefferson, NY (US)
Assigned to The Research Foundation for The State University of New York, Albany, NY (US); and Qunnect, Inc., Brooklyn, NY (US)
Filed by The Research Foundation for The State University of New York, Albany, NY (US)
Filed on Oct. 1, 2020, as Appl. No. 17/61,376.
Claims priority of provisional application 62/909,515, filed on Oct. 2, 2019.
Prior Publication US 2021/0105135 A1, Apr. 8, 2021
Int. Cl. H04L 9/08 (2006.01); G01B 9/02017 (2022.01); H04B 10/70 (2013.01)
CPC H04L 9/0858 (2013.01) [G01B 9/02017 (2013.01); H04B 10/70 (2013.01); H04L 9/0855 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method, comprising:
separately storing, while maintaining quantum integrity, first, second, third, and fourth photons, wherein the first and second photons and the third and fourth photons are respective first and second entangled photon pairs;
triggering a synchronized retrieval of the stored first, second, third, and fourth photons such that the first photon stored in a first quantum memory is propagated to a first node, the second photon stored in a second quantum memory and the third photon stored in a third quantum memory are propagated to a second node, and the fourth photon stored in a fourth quantum memory is propagated to a third node;
simultaneously measuring quantum features of the second and third photons at the second node; and
creating a new entangled pair comprising the first and fourth photons at the first and third nodes, respectively.