公开(公告)号：US12253684B2

公开(公告)日：2025-03-18

申请号：US18377939

申请日：2023-10-09

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Krishnakumar Sabapathy ,  Haoyu Qi ,  Joshua Abe Izaac ,  Christian Weedbrook ,  Daiqin Su ,  Casey Myers

IPC: G02B27/09 ,  G02F1/01

Abstract: An apparatus includes an optical circuit having at least one reconfigurable beamsplitter and is configured to receive a plurality of input optical modes in a Gaussian state and generate a plurality of output optical modes. The apparatus also includes at least one detector optically coupled with the optical circuit and configured to perform a non-Gaussian measurement of a first output optical mode from the plurality of output optical modes. The non-Gaussian measurement of the first output optical mode is configured to cause a second output optical mode from the plurality of output optical modes to be in a first non-Gaussian state. The apparatus also includes a controller operatively coupled to the optical circuit and configured to change a setting of the at least one reconfigurable beamsplitter to cause the second output optical mode from the plurality of output optical modes to be in a second non-Gaussian state.

公开(公告)号：US11989620B2

公开(公告)日：2024-05-21

申请号：US17034050

申请日：2020-09-28

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Ish Dhand ,  Haoyu Qi ,  Leonhard Neuhaus ,  Lukas Helt ,  Kamil Bradler ,  Zachary Vernon ,  Shreya Prasanna Kumar

IPC: G06E3/00 ,  G06F17/14 ,  G06N3/126 ,  G06N10/00 ,  G06F17/11

CPC classification number: G06N10/00 ,  G06E3/008 ,  G06F17/14 ,  G06N3/126 ,  G06F17/11

Abstract: A method includes calculating a plurality of permutation matrices of an input matrix that characterizes a linear transformation of a plurality of input states. The method also includes determining a plurality of settings of an optical circuit based on the plurality of permutation matrices. Each setting in the plurality of settings is associated with an electric power, from a plurality of electric powers, consumed by the optical circuit. The method also includes determining a selected setting of the optical circuit based on the electric power from the plurality of electric powers and consumed by the optical circuit at each setting from the plurality of settings associated with the electric power. The method further includes implementing the selected setting on the optical circuit to perform the linear transformation of the plurality of input states.

公开(公告)号：US11815696B1

公开(公告)日：2023-11-14

申请号：US16997601

申请日：2020-08-19

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Krishnakumar Sabapathy ,  Haoyu Qi ,  Joshua Abe Izaac ,  Christian Weedbrook ,  Daiqin Su ,  Casey Myers

IPC: G02B27/09 ,  G02F1/01

CPC classification number: G02B27/0927 ,  G02F1/0121 ,  G02F2201/58

Abstract: An apparatus includes an optical circuit having at least one reconfigurable beamsplitter and is configured to receive a plurality of input optical modes in a Gaussian state and generate a plurality of output optical modes. The apparatus also includes at least one detector optically coupled with the optical circuit and configured to perform a non-Gaussian measurement of a first output optical mode from the plurality of output optical modes. The non-Gaussian measurement of the first output optical mode is configured to cause a second output optical mode from the plurality of output optical modes to be in a first non-Gaussian state. The apparatus also includes a controller operatively coupled to the optical circuit and configured to change a setting of the at least one reconfigurable beamsplitter to cause the second output optical mode from the plurality of output optical modes to be in a second non-Gaussian state.

公开(公告)号：US11125773B2

公开(公告)日：2021-09-21

申请号：US16922158

申请日：2020-07-07

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Saikat Guha ,  Haoyu Qi

IPC: G01Q20/00 ,  G01Q20/02 ,  G01Q60/24

Abstract: A method includes sending a probe beam into a beam path that induces a lateral displacement to the probe beam. The probe beam includes a plurality of orthogonal spatial modes that are entangled with each other. The method also includes measuring a phase of each spatial mode from the plurality of orthogonal spatial modes in the probe beam at a detector disposed within a near field propagation regime of the probe beam. The method also includes estimating the lateral displacement of the probe beam based on a phase of each spatial mode from the plurality of spatial modes in the probe beam after the beam path.