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公开(公告)号：US20240195834A1
公开(公告)日：2024-06-13
申请号：US18221007
申请日：2023-07-12
发明人： Tali Septon , Elad Mentovich , Moshe B. Oron , Yonatan Piasetzky , Yuval Idan , Eliahu Cohen , Avshalom Elitzur , Taylor Lee Patti
CPC分类号： H04L63/1475 , H04B10/70 , H04L63/1416
摘要： Methods, apparatus, and computer program products for quantum communications and quantum information processing are provided. An example method includes determining a received state of a qubit received via a quantum communication link where the received state includes one or more properties of the received qubit. The method further accesses a transmitted state of the qubit where the transmitted state includes one or more properties of the qubit as transmitted. The method continues by comparing the one or more properties of the qubit in the received state with the one or more properties of the qubit in the transmitted state. Finally, the method detects a condition of the quantum communication link based on the comparison between the received state and the transmitted state. In doing so, the embodiments operate to characterize the noise level, security, etc. of a quantum communication interconnect, link, or channel.
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2.发明授权公开(公告)号：US11949463B1
公开(公告)日：2024-04-02
申请号：US18220990
申请日：2023-07-12
发明人： Tali Septon , Elad Mentovich , Moshe B Oron , Yonatan Piasetzky , Yuval Idan , Eliahu Cohen , Avshalom C Elitzur , Taylor Lee Patti
IPC分类号： H04B10/70
CPC分类号： H04B10/70
摘要： Various embodiments of the present disclosure are directed to accessing a quantum communication channel undetected and/or characterizing this communication channel based upon attempted access. An example method includes accessing a quantum communication channel transmitting one or more qubits. The method includes the introduction of a noise signal to the quantum communication channel and then applying in its absence one or more weak or variable-strength measurements to the quantum communication channel. A strength of at least one measurement of the one or more measurements is based at least in part upon the current noise signal. The method further includes obtaining information associated with the one or more qubits based on the one or more measurements.
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