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公开(公告)号:US11321627B1
公开(公告)日:2022-05-03
申请号:US17098232
申请日:2020-11-13
Applicant: Amazon Technologies, Inc.
Inventor: Patricio Arrangoiz Arriola , Amir Safavi-Naeini , Oskar Jon Painter , Connor Hann , Fernando Brandao , Kyungjoo Noh , Joseph Kramer Iverson , Harald Esko Jakob Putterman , Christopher Chamberland , Earl Campbell
Abstract: A fault tolerant quantum computer is implemented using hybrid acoustic-electric qubits. A control circuit includes an asymmetrically threaded superconducting quantum interference devices (ATS) that excites excite phonons in a mechanical resonator by driving a storage mode of the mechanical resonator and dissipates phonons from the mechanical resonator via an open transmission line coupled to the control circuit, wherein the open transmission line is configured to absorb photons from a dump mode of the control circuit.
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公开(公告)号:US20220156621A1
公开(公告)日:2022-05-19
申请号:US17098232
申请日:2020-11-13
Applicant: Amazon Technologies, Inc.
Inventor: Patricio Arrangoiz Arriola , Amir Safavi-Naeini , Oskar Jon Painter , Connor Hann , Fernando Brandao , Kyungjoo Noh , Joseph Kramer Iverson , Harald Esko Jakob Putterman , Christopher Chamberland , Earl Campbell
Abstract: A fault tolerant quantum computer is implemented using hybrid acoustic-electric qubits. A control circuit includes an asymmetrically threaded superconducting quantum interference devices (ATS) that excites excite phonons in a mechanical resonator by driving a storage mode of the mechanical resonator and dissipates phonons from the mechanical resonator via an open transmission line coupled to the control circuit, wherein the open transmission line is configured to absorb photons from a dump mode of the control circuit.
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3.
公开(公告)号:US20220178995A1
公开(公告)日:2022-06-09
申请号:US17218043
申请日:2021-03-30
Applicant: Amazon Technologies, Inc.
Inventor: Christopher Chamberland , Kyungjoo Noh , Connor Hann , Fernando Brandao
IPC: G01R31/3177 , G06N10/00
Abstract: Extra edges are added to a group of edges for use in decoding syndrome measurements of a surface code implemented using hybrid acoustic-electric qubits. The extra edges include two-dimensional cross-edges and three-dimensional space-time correlated edges that identify correlated errors arising from spurious photon dissipation processes of a multiplexed control circuit that leads to cross-talk between storage modes of a set of the mechanical resonators controlled by the given multiplexed control circuit. Additionally, error probabilities used for edge weighting incorporate error probabilities due to the spurious photon dissipation processes.
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公开(公告)号:US20220156444A1
公开(公告)日:2022-05-19
申请号:US17098245
申请日:2020-11-13
Applicant: Amazon Technologies, Inc.
Inventor: Kyungjoo Noh , Joseph Kramer Iverson , Connor Hann
IPC: G06F30/3308 , G06F30/39 , G06N10/00
Abstract: A method of simulating quantum gates includes shifting a Fock basis for the simulation such that the simulation can be performed in a smaller (e.g. truncated) Hilbert dimension space. To shift the Fock basis, non-orthonormalized basis states are first defined. The defined basis states are then orthonormalized to construct orthonormalized shifted Fock basis state. Matrix elements are determined for an operator in the orthonormalized shifted Fock basis and the operator is used to simulate the quantum gate in the shifted Fock basis.
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公开(公告)号:US11941483B2
公开(公告)日:2024-03-26
申请号:US17217946
申请日:2021-03-30
Applicant: Amazon Technologies, Inc.
Inventor: Connor Hann , Kyungjoo Noh , Patricio Arrangoiz Arriola , Christopher Chamberland , Fernando Brandao
Abstract: A fault tolerant quantum computer is implementing using hybrid acoustic-electric qubits. A control circuit includes an asymmetrically threaded superconducting quantum interference devices (ATS) that excites phonons in a mechanical resonator by driving a storage mode of the mechanical resonator and dissipates phonons from the mechanical resonator via an open transmission line coupled to the control circuit, wherein the open transmission line is configured to absorb photons from a dump mode of the control circuit. Filters are included in the control circuit to suppress cross-talk errors. Additionally, frequencies and pump mode detunings for respective multiplexed control circuits are strategically selected to reduce cross-talk errors.
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6.
公开(公告)号:US11580436B2
公开(公告)日:2023-02-14
申请号:US17218043
申请日:2021-03-30
Applicant: Amazon Technologies, Inc.
Inventor: Christopher Chamberland , Kyungjoo Noh , Connor Hann , Fernando Brandao
Abstract: Extra edges are added to a group of edges for use in decoding syndrome measurements of a surface code implemented using hybrid acoustic-electric qubits. The extra edges include two-dimensional cross-edges and three-dimensional space-time correlated edges that identify correlated errors arising from spurious photon dissipation processes of a multiplexed control circuit that leads to cross-talk between storage modes of a set of the mechanical resonators controlled by the given multiplexed control circuit. Additionally, error probabilities used for edge weighting incorporate error probabilities due to the spurious photon dissipation processes.
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公开(公告)号:US11436398B2
公开(公告)日:2022-09-06
申请号:US17098245
申请日:2020-11-13
Applicant: Amazon Technologies, Inc.
Inventor: Kyungjoo Noh , Joseph Kramer Iverson , Connor Hann
IPC: G06F30/3308 , G06N10/00 , G06F30/39 , G06F117/02
Abstract: A method of simulating quantum gates includes shifting a Fock basis for the simulation such that the simulation can be performed in a smaller (e.g. truncated) Hilbert dimension space. To shift the Fock basis, non-orthonormalized basis states are first defined. The defined basis states are then orthonormalized to construct orthonormalized shifted Fock basis state. Matrix elements are determined for an operator in the orthonormalized shifted Fock basis and the operator is used to simulate the quantum gate in the shifted Fock basis.
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公开(公告)号:US20220180236A1
公开(公告)日:2022-06-09
申请号:US17217946
申请日:2021-03-30
Applicant: Amazon Technologies, Inc.
Inventor: Connor Hann , Kyungjoo Noh , Patricio Arrangoiz Arriola , Christopher Chamberland , Fernando Brandao
Abstract: A fault tolerant quantum computer is implementing using hybrid acoustic-electric qubits. A control circuit includes an asymmetrically threaded superconducting quantum interference devices (ATS) that excites phonons in a mechanical resonator by driving a storage mode of the mechanical resonator and dissipates phonons from the mechanical resonator via an open transmission line coupled to the control circuit, wherein the open transmission line is configured to absorb photons from a dump mode of the control circuit. Filters are included in the control circuit to suppress cross-talk errors. Additionally, frequencies and pump mode detunings for respective multiplexed control circuits are strategically selected to reduce cross-talk errors.
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