公开(公告)号：US20210103847A1

公开(公告)日：2021-04-08

申请号：US17063492

申请日：2020-10-05

Applicant: X Development LLC

Inventor： Guillame Verdon Akzam

IPC: G06N10/00 ,  H04B10/70 ,  H03M1/66 ,  H03M1/12

Abstract: Quantum repeater systems and apparatus for quantum communication. In one aspect, a system includes a quantum signal receiver configured to receive a quantum field signal; a quantum signal converter configured to: sample quantum analog signals from a quantum field signal received by the quantum signal receiver; encode sampled quantum analog signals as corresponding digital quantum information in one or more qudits, comprising applying a hybrid analog-digital encoding operation to each quantum analog signal and a qudit in an initial state; decode digital quantum information stored in the one or more qudits as a recovered quantum field signal, comprising applying a hybrid digital-analog decoding operation to each qudit and a quantum analog register in an initial state; a quantum memory comprising qudits and configured to store digital quantum information encoded by the quantum signal converter; and a quantum signal transmitter configured to transmit the recovered quantum field signal.