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公开(公告)号：US20240160976A1
公开(公告)日：2024-05-16
申请号：US17988418
申请日：2022-11-16
Applicant: Google LLC
Inventor： Paul Victor Klimov
IPC: G06N10/20
CPC classification number: G06N10/20
Abstract: An example computer-implemented method for calibrating a qubit of a quantum device is disclosed. The example method includes obtaining a candidate calibration model for calibrating an operating characteristic of the qubit. The example method includes determining, using one or more quantum device models, a simulated quantum device performance metric associated with implementation of the candidate calibration model based on log data descriptive of observed qubit operating characteristics and associated observed quantum device performance metrics.
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公开(公告)号：US20230081120A1
公开(公告)日：2023-03-16
申请号：US17941365
申请日：2022-09-09
Applicant: Google LLC
Inventor： Paul Victor Klimov
Abstract: Systems and methods for operating one or more qubits in a quantum computing system are provided. In some examples, a method can include obtaining past time data associated with a temporal metric of an operating parameter of a qubit in a quantum device. The method can include selecting an operating parameter value based at least in part on the past time data associated with the temporal metric of the operating parameter to reduce likelihood of occurrence of a time dependent defect. The time dependent defect can exhibit a time dependent behavior. The method can include operating the qubit in the quantum device at the operating parameter value.
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公开(公告)号：US20230029092A1
公开(公告)日：2023-01-26
申请号：US17784158
申请日：2020-12-04
Applicant: Google LLC
Inventor： Paul Victor Klimov
Abstract: Systems and methods for calibrating a qubit parameter for a qubit in a quantum computing system are provided. In one example, a method includes obtaining, by one or more computing devices, data associated with a set of one or more qubit parameters for a qubit in a quantum computing system. The method includes obtaining, by the one or more computing devices, calibration data associated with at least one qubit parameter in the set of one or more qubit parameters. The method includes determining, by the one or more computing devices, a value for the at least one qubit parameter based at least in part on the calibration data using a de-corrupting autoencoder.
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公开(公告)号：US20240354626A1
公开(公告)日：2024-10-24
申请号：US18156063
申请日：2023-01-18
Applicant: Google LLC
Inventor： Paul Victor Klimov , Trond Ikdahl Andersen , Yuezhen Niu , Vadim Smelyanskiy
Abstract: Systems and methods for operating a quantum computing system are provided. In some examples, a method may include obtaining characterization data associated with an operating parameter of a qubit in a quantum computing system. The method may include implementing an unsupervised learning operation to extract one or more anomalies from the characterization data. The method may include operating the qubit in the quantum computing system based at least in part on the one or more anomalies.
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公开(公告)号：US20240119326A1
公开(公告)日：2024-04-11
申请号：US18483758
申请日：2023-10-10
Applicant: Google LLC
Inventor： Kevin Joseph Satzinger , Julian Shaw Kelly , Paul Victor Klimov , Alexander Nikolaevich Korotkov
Abstract: Systems and methods for measuring quantum states of qubits with more than two levels are provided. A method can include, for a plurality of shuffling sequences, applying, by a quantum computer, one or more quantum gates to the one or more qubits to execute a quantum algorithm; applying, by the quantum computer, a shuffling sequence to the one or more qubits; and measuring, using a readout apparatus, the state of the one or more qubits to determine a readout state. The method can further include determining, by a classical computer or the quantum computer, an average occupation for one or more of the quantum states of the one or more qubits using the readout states for each of the shuffling sequences. The readout states can correspond to a state in a subset of the quantum states of the one or more qubits.
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Patent Agency Ranking
公开(公告)号：US11816535B1
公开(公告)日：2023-11-14
申请号：US17109448
申请日：2020-12-02
Applicant: Google LLC
Inventor： Kevin Joseph Satzinger , Julian Shaw Kelly , Paul Victor Klimov , Alexander Nikolaevich Korotkov
Abstract: Systems and methods for measuring quantum states of qubits with more than two levels are provided. A method can include, for a plurality of shuffling sequences, applying, by a quantum computer, one or more quantum gates to the one or more qubits to execute a quantum algorithm; applying, by the quantum computer, a shuffling sequence to the one or more qubits; and measuring, using a readout apparatus, the state of the one or more qubits to determine a readout state. The method can further include determining, by a classical computer or the quantum computer, an average occupation for one or more of the quantum states of the one or more qubits using the readout states for each of the shuffling sequences. The readout states can correspond to a state in a subset of the quantum states of the one or more qubits.
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公开(公告)号：US20220414514A1
公开(公告)日：2022-12-29
申请号：US17694820
申请日：2022-03-15
Applicant: Google LLC
Inventor： Alexander Nikolaevich Korotkov , Kevin Joseph Satzinger , Matthew James McEwen , Vadim Smelyanskiy , Paul Victor Klimov , Rami Barends , Julian Shaw Kelly , Juan Carlos Atalaya-Chavez , Zijun Chen
IPC: G06N10/40
Abstract: A quantum computing system configured for removal of leakage states can include quantum hardware including a first qubit and a second qubit, wherein the first qubit is configured to have a first transition frequency and wherein the second qubit is configured to have a second transition frequency, the first transition frequency being greater than the second transition frequency. The quantum computing system can include one or more quantum control devices configured to control operation of at least the first qubit and the second qubit, wherein the one or more quantum control devices are configured to implement a quantum gate operation on the first qubit and the second qubit based at least in part on the first transition frequency and the second transition frequency, and wherein the one or more quantum control devices are configured to periodically reset a quantum state of the first qubit.
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公开(公告)号：US12182660B2
公开(公告)日：2024-12-31
申请号：US18483758
申请日：2023-10-10
Applicant: Google LLC
Inventor： Kevin Joseph Satzinger , Julian Shaw Kelly , Paul Victor Klimov , Alexander Nikolaevich Korotkov
Abstract: Systems and methods for measuring quantum states of qubits with more than two levels are provided. A method can include, for a plurality of shuffling sequences, applying, by a quantum computer, one or more quantum gates to the one or more qubits to execute a quantum algorithm; applying, by the quantum computer, a shuffling sequence to the one or more qubits; and measuring, using a readout apparatus, the state of the one or more qubits to determine a readout state. The method can further include determining, by a classical computer or the quantum computer, an average occupation for one or more of the quantum states of the one or more qubits using the readout states for each of the shuffling sequences. The readout states can correspond to a state in a subset of the quantum states of the one or more qubits.
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公开(公告)号：US12130694B2
公开(公告)日：2024-10-29
申请号：US17941365
申请日：2022-09-09
Applicant: Google LLC
Inventor： Paul Victor Klimov
CPC classification number: G06F11/0751 , G06F11/0721 , G06N10/60
Abstract: Systems and methods for operating one or more qubits in a quantum computing system are provided. In some examples, a method can include obtaining past time data associated with a temporal metric of an operating parameter of a qubit in a quantum device. The method can include selecting an operating parameter value based at least in part on the past time data associated with the temporal metric of the operating parameter to reduce likelihood of occurrence of a time dependent defect. The time dependent defect can exhibit a time dependent behavior. The method can include operating the qubit in the quantum device at the operating parameter value.
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公开(公告)号：US12008435B2
公开(公告)日：2024-06-11
申请号：US17694820
申请日：2022-03-15
Applicant: Google LLC
Inventor： Alexander Nikolaevich Korotkov , Kevin Joseph Satzinger , Matthew James McEwen , Vadim Smelyanskiy , Paul Victor Klimov , Rami Barends , Julian Shaw Kelly , Juan Carlos Atalaya-Chavez , Zijun Chen
CPC classification number: G06N10/40
Abstract: A quantum computing system configured for removal of leakage states can include quantum hardware including a first qubit and a second qubit, wherein the first qubit is configured to have a first transition frequency and wherein the second qubit is configured to have a second transition frequency, the first transition frequency being greater than the second transition frequency. The quantum computing system can include one or more quantum control devices configured to control operation of at least the first qubit and the second qubit, wherein the one or more quantum control devices are configured to implement a quantum gate operation on the first qubit and the second qubit based at least in part on the first transition frequency and the second transition frequency, and wherein the one or more quantum control devices are configured to periodically reset a quantum state of the first qubit.
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