公开(公告)号：US11715026B2

公开(公告)日：2023-08-01

申请号：US16917710

申请日：2020-06-30

Applicant: Massachusetts Institute of Technology

Inventor： William Oliver ,  Seth Lloyd ,  Danna Rosenberg ,  Michael O'Keeffe ,  Amy Greene ,  Morten Kjaergaard ,  Mollie Schwartz ,  Gabriel Samach ,  Iman Marvian Mashhad

IPC: G06N10/00 ,  G06F11/00 ,  H03M13/00 ,  H10N60/84

CPC classification number: G06N10/00 ,  G06F11/004 ,  H03M13/6508 ,  H10N60/84

Abstract: Systems and methods for performing open-loop quantum error mitigation using quantum measurement emulations are provided. The open-loop quantum error mitigation methods do not require the performance of state readouts or state tomography, reducing hardware requirements and increasing overall computation speed. To perform a quantum measurement emulation, an error mitigation apparatus is configured to stochastically apply a quantum gate to a qubit or set of qubits during a quantum computational process. The stochastic application of the quantum gate projects the quantum state of the affected qubits onto an axis, reducing a trace distance between the quantum state and a desired quantum state.

公开(公告)号：US20210406749A1

公开(公告)日：2021-12-30

申请号：US16917710

申请日：2020-06-30

Applicant: Massachusetts Institute of Technology

Inventor： William Oliver ,  Seth Lloyd ,  Danna Rosenberg ,  Michael O'Keeffe ,  Amy Greene ,  Morten Kjaergaard ,  Mollie Schwartz ,  Gabriel Samach ,  Iman Marvian Mashhad

IPC: G06N10/00 ,  H03M13/00 ,  H01L39/10 ,  G06F11/00

Abstract: Systems and methods for performing open-loop quantum error mitigation using quantum measurement emulations are provided. The open-loop quantum error mitigation methods do not require the performance of state readouts or state tomography, reducing hardware requirements and increasing overall computation speed. To perform a quantum measurement emulation, an error mitigation apparatus is configured to stochastically apply a quantum gate to a qubit or set of qubits during a quantum computational process. The stochastic application of the quantum gate projects the quantum state of the affected qubits onto an axis, reducing a trace distance between the quantum state and a desired quantum state.