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Patent Agency Ranking
1.发明授权公开(公告)号：US11009375B2
公开(公告)日：2021-05-18
申请号：US16002906
申请日：2018-06-07
Inventor： Daniel E. Jones , Brian T. Kirby , Michael Brodsky
Abstract: A novel methodology for characterizing and calibrating an entangled photon distribution system is disclosed. The entangled photon distribution system includes at least a source of entangled photon pairs, two photon detectors which detect photons among two channels and a controller. The methodology includes: for at least two different operational setting levels of the source of entangled photon pairs, measuring count rates for photons detected by the two photon detectors, individually and coincidently; fitting the measured individual and coincidence count rate data for the at least two different operational setting levels with theoretical models of detection probability; and determining operational parameters of the system from the fitting. The determined operational parameters of the system include the rate of generated entangled photon pairs by the source, the rates of Raman-scattered photons generated in the first and second channels, respectively, and the efficiency of the two photon detectors, respectively.
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公开(公告)号：US20170207858A1
公开(公告)日：2017-07-20
申请号：US15000556
申请日：2016-01-19
Inventor： Robert J. Drost , Michael Brodsky
IPC: H04B10/70
CPC classification number: H04B10/70
Abstract: A method for determining a network configuration for the delivery of entangled photons individually to a plurality of users, the network comprising a plurality of inputs, switches, and outputs operatively connected by optical fibers; the plurality of switches being switchable between two states; the method comprising: determining the minimum number of switches necessary to deliver entangled photon pairs from a predetermined number of sources to a predetermined number of users, minimizing the loss experienced by an entangled photon passing through the switches by minimizing the number of switches that any one photon passes through by selecting only nondominated switch configurations; determining the minimum number of equivalent network switch configurations and eliminating all but one of the equivalent network switch configurations; and selecting an optimum network configuration by which the plurality of inputs and the plurality of outputs are operatively interconnected using a minimum number of switches in any one route.
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公开(公告)号：US10225080B2
公开(公告)日：2019-03-05
申请号：US15590828
申请日：2017-05-09
Inventor： Robert James Drost , Terrence Joseph Moore , Michael Brodsky
Abstract: Quantum networking systems and methods for routing entangled photons pairs are described herein. One quantum networking system includes entangled photon sources which generate entangled photons; optical output ports; a reconfigurable switching network connecting to the entangled photon sources and the output ports, which include a regular repeating structure of optical crossbar switches and interconnections for selectively routing individual ones of entangled photons pairs input to the network to and amongst the outputs; and a control module. The control module is configured to receive a request for entangled photons at the output ports; execute a routing algorithm to determine the state of the switches in the reconfigurable switching network to satisfy the request; and generate and transmit control signals to the switching network in order to set the states of the switches according to the executed routing algorithm. The reconfigurable switching network may be a Beneš or a banyan-type network architecture.
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公开(公告)号：US10193637B2
公开(公告)日：2019-01-29
申请号：US15000556
申请日：2016-01-19
Inventor： Robert J. Drost , Michael Brodsky
IPC: H04B10/70
Abstract: A method for determining a network configuration for the delivery of entangled photons individually to a plurality of users, the network comprising a plurality of inputs, switches, and outputs operatively connected by optical fibers; the plurality of switches being switchable between two states; the method comprising: determining the minimum number of switches necessary to deliver entangled photon pairs from a predetermined number of sources to a predetermined number of users, minimizing the loss experienced by an entangled photon passing through the switches by minimizing the number of switches that any one photon passes through by selecting only nondominated switch configurations; determining the minimum number of equivalent network switch configurations and eliminating all but one of the equivalent network switch configurations; and selecting an optimum network configuration by which the plurality of inputs and the plurality of outputs are operatively interconnected using a minimum number of switches in any one route.
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公开(公告)号：US20180152295A1
公开(公告)日：2018-05-31
申请号：US15590828
申请日：2017-05-09
Inventor： Robert James Drost , Terrence Joseph Moore , Michael Brodsky
CPC classification number: H04L9/0855 , G02B2207/114 , H04B10/70 , H04L9/0858 , H04M99/00 , H04M2201/60 , H04M2207/20
Abstract: Quantum networking systems and methods for routing entangled photons pairs are described herein. One quantum networking system includes entangled photon sources which generate entangled photons; optical output ports; a reconfigurable switching network connecting to the entangled photon sources and the output ports, which include a regular repeating structure of optical crossbar switches and interconnections for selectively routing individual ones of entangled photons pairs input to the network to and amongst the outputs; and a control module. The control module is configured to receive a request for entangled photons at the output ports; execute a routing algorithm to determine the state of the switches in the reconfigurable switching network to satisfy the request; and generate and transmit control signals to the switching network in order to set the states of the switches according to the executed routing algorithm. The reconfigurable switching network may be a Beneš or a banyan-type network architecture.
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