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公开(公告)号：US11651263B2
公开(公告)日：2023-05-16
申请号：US16624037
申请日：2017-12-15
Applicant: Google LLC
Inventor： John Martinis , Yu Chen , Hartmut Neven , Dvir Kafri
IPC: G06N10/00 , G06F30/25 , G06K9/62 , G06F18/214
CPC classification number: G06N10/00 , G06F18/214 , G06F30/25
Abstract: Methods, systems, and apparatus for nonlinear calibration of quantum computing apparatus. In one aspect, elements in a set of experimental data correspond to a respective configuration of control biases for the quantum computing apparatus. An initial physical model comprising one or more model parameters of the quantum computing apparatus is defined. The model is iteratively adjusted to determine a revised physical model, where at each iteration: a set of predictive data corresponding to the set of experimental data is generated, and elements in the predictive data represent a difference between the two smallest eigenvalues of a Hamiltonian characterizing the system qubits for the previous iteration, and are dependent on at least one model parameter of the physical model for the previous iteration; and the model for the previous iteration is adjusted using the obtained experimental data and the generated set of predictive data for the iteration.
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Patent Agency Ranking
公开(公告)号：US10528887B2
公开(公告)日：2020-01-07
申请号：US16270739
申请日：2019-02-08
Applicant: Google LLC
Inventor： Yu Chen , Dvir Kafri
IPC: H01L27/18 , G06N10/00 , H01L39/22 , H01P3/00 , H01P5/02 , H05K1/11 , H05K1/18 , G06N20/00 , G06N99/00
Abstract: A device includes: a first qubit including a first co-planar waveguide; a second qubit including a second co-planar waveguide, in which the second co-planar waveguide crosses the first co-planar waveguide; and a qubit coupler including a loop having a first lobe and a second lobe, in which a first portion of the first lobe extends parallel to the first co-planar waveguide, a second portion of the first lobe extends parallel to the second co-planar waveguide, a first portion of the second lobe extends parallel to the first co-planar waveguide, and a second portion of the second lobe extends parallel to the second co-planar waveguide.
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公开(公告)号：US10235634B1
公开(公告)日：2019-03-19
申请号：US15686902
申请日：2017-08-25
Applicant: Google LLC
Inventor： Yu Chen , Dvir Kafri
Abstract: A device includes: a first qubit including a first co-planar waveguide; a second qubit including a second co-planar waveguide, in which the second co-planar waveguide crosses the first co-planar waveguide; and a qubit coupler including a loop having a first lobe and a second lobe, in which a first portion of the first lobe extends parallel to the first co-planar waveguide, a second portion of the first lobe extends parallel to the second co-planar waveguide, a first portion of the second lobe extends parallel to the first co-planar waveguide, and a second portion of the second lobe extends parallel to the second co-planar waveguide.
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公开(公告)号：US20210035005A1
公开(公告)日：2021-02-04
申请号：US16624037
申请日：2017-12-15
Applicant: Google LLC
Inventor： John Martinis , Yu Chen , Hartmut Neven , Dvir Kafri
Abstract: Methods, systems, and apparatus for nonlinear calibration of quantum computing apparatus. In one aspect, elements in a set of experimental data correspond to a respective configuration of control biases for the quantum computing apparatus. An initial physical model comprising one or more model parameters of the quantum computing apparatus is defined. The model is iteratively adjusted to determine a revised physical model, where at each iteration: a set of predictive data corresponding to the set of experimental data is generated, and elements in the predictive data represent a difference between the two smallest eigenvalues of a Hamiltonian characterizing the system qubits for the previous iteration, and are dependent on at least one model parameter of the physical model for the previous iteration; and the model for the previous iteration is adjusted using the obtained experimental data and the generated set of predictive data for the iteration.
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公开(公告)号：US20190188597A1
公开(公告)日：2019-06-20
申请号：US16270739
申请日：2019-02-08
Applicant: Google LLC
Inventor： Yu Chen , Dvir Kafri
CPC classification number: G06N10/00 , G06N20/00 , G06N20/10 , G06N99/00 , H01L27/18 , H01L39/223 , H01P3/003 , H01P5/02 , H05K1/111 , H05K1/181
Abstract: A device includes: a first qubit including a first co-planar waveguide; a second qubit including a second co-planar waveguide, in which the second co-planar waveguide crosses the first co-planar waveguide; and a qubit coupler including a loop having a first lobe and a second lobe, in which a first portion of the first lobe extends parallel to the first co-planar waveguide, a second portion of the first lobe extends parallel to the second co-planar waveguide, a first portion of the second lobe extends parallel to the first co-planar waveguide, and a second portion of the second lobe extends parallel to the second co-planar waveguide.
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公开(公告)号：US20190065981A1
公开(公告)日：2019-02-28
申请号：US15686902
申请日：2017-08-25
Applicant: Google LLC
Inventor： Yu Chen , Dvir Kafri
Abstract: A device includes: a first qubit including a first co-planar waveguide; a second qubit including a second co-planar waveguide, in which the second co-planar waveguide crosses the first co-planar waveguide; and a qubit coupler including a loop having a first lobe and a second lobe, in which a first portion of the first lobe extends parallel to the first co-planar waveguide, a second portion of the first lobe extends parallel to the second co-planar waveguide, a first portion of the second lobe extends parallel to the first co-planar waveguide, and a second portion of the second lobe extends parallel to the second co-planar waveguide.
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