公开(公告)号：US20240135221A1

公开(公告)日：2024-04-25

申请号：US17967307

申请日：2022-10-17

申请人： NATIONAL RESEARCH COUNCIL OF CANADA

发明人： Frederic BOUCHARD ,  Duncan ENGLAND ,  Kent BONSMA-FISHER ,  Philip J. BUSTARD ,  Khabat HESHAMI ,  Benjamin SUSSMAN

IPC分类号： G06N10/40 ,  G06N10/20

CPC分类号： G06N10/40 ,  G06N10/20

摘要： A quantum computing system is set forth, comprising a photon source for generating short duration single photon pulses, at least one temporal interferometric network for time-bin encoding each short duration single photon pulse in a single spatial mode, wherein the temporal interferometric network includes at least one optical switch, at least one birefringent material and at least one polarization element, and a photon detector for detecting time-of-arrival of photons output from the temporal interferometric network to measure the state of the photons

公开(公告)号：US20230208532A1

公开(公告)日：2023-06-29

申请号：US17927829

申请日：2021-05-20

申请人： National Research Council of Canada

发明人： Frédéric BOUCHARD ,  Duncan ENGLAND ,  Philip J. BUSTARD ,  Khabat HESHAMI ,  Benjamin SUSSMAN

IPC分类号： H04B10/70

CPC分类号： H04B10/70

摘要： A quantum communication method comprising: at a sender, preparing photons encoded in a single spatial, spectral, and temporal (SST) mode to form a quantum signal; and introducing the quantum signal into a quantum channel; at a receiver, a detector and filtering system optically processing the quantum signal and rejecting background noise photons in the quantum channel, and performing active temporal filtering by switching the polarization of the quantum signal without substantially adding noise; and wherein the active temporal filtering minimizes saturation of the detector.