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公开(公告)号：US12164954B2
公开(公告)日：2024-12-10
申请号：US17161838
申请日：2021-01-29
Applicant: International Business Machines Corporation
Inventor： Lev Samuel Bishop , Andrew W. Cross , Ismael Faro Sertage , Jay M. Gambetta
Abstract: A compatibility is ascertained between a configuration of a quantum processor (q-processor) of a quantum cloud compute node (QCCN) in a quantum cloud environment (QCE) and an operation requested in a first instruction in a portion (q-portion) of a job submitted to the QCE, the QCE including the QCCN and a conventional compute node (CCN), the CCN including a conventional processor configured for binary computations. In response to the ascertaining, a quantum instruction (q-instruction) is constructed corresponding to the first instruction. The q-instruction is executed using the q-processor of the QCCN to produce a quantum output signal (q-signal). The q-signal is transformed into a corresponding quantum computing result (q-result). A final result is returned to a submitting system that submitted the job, wherein the final result comprises the q-result.
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公开(公告)号：US12154001B2
公开(公告)日：2024-11-26
申请号：US16354725
申请日：2019-03-15
Applicant: International Business Machines Corporation
Inventor： Don Greenberg , Marco Pistoia , Ivano Tavernelli , Jay M. Gambetta
Abstract: According to an embodiment, a system can comprise a memory that stores computer executable components and a processor that executes the computer executable components stored in the memory. The computer executable components can comprise an extrapolation component that extrapolates a system parameter of a parameter set to determine a starting parameter value of a variational circuit. The computer executable components can further comprise a variational component that determines a system parameter value of the parameter set based on the starting parameter value.
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公开(公告)号：US11983471B2
公开(公告)日：2024-05-14
申请号：US17715234
申请日：2022-04-07
Applicant: International Business Machines Corporation
Inventor： Jay M. Gambetta , Andrew W. Cross , Ali Javadiabhari , Dmitri Maslov
Abstract: A repository is configured in a hybrid data processing environment comprising a classical computing system and a quantum computing system, to hold a plurality of quantum circuit components (QCC(s)). A degree of difficulty in simulating the received QCC in the classical computing system is transformed into a classical hardness score. A degree of difficulty in implementing the received QCC in the quantum computing system is transformed into a quantum hardness score. A first parameter in a metadata data structure associated with the received QCC is populated with the classical hardness score. A second parameter in the metadata data structure associated with the received QCC is populated with the quantum hardness score. The received QCC is transformed into a library element by at least augmenting the received QCC with the metadata data structure. The library element is added to the repository.
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公开(公告)号：US11748665B2
公开(公告)日：2023-09-05
申请号：US16374354
申请日：2019-04-03
Applicant: International Business Machines Corporation
Inventor： Jay M. Gambetta , Jennifer Ranae Glick , Paul Kristan Temme , Tanvi Pradeep Gujarati
Abstract: The illustrative embodiments provide a method, system, and computer program product for quantum feature kernel alignment using a hybrid classical-quantum computing system. An embodiment of a method for hybrid classical-quantum decision maker training includes receiving a training data set. In an embodiment, the method includes selecting, by a first processor, a sampling of objects from the training set, each object represented by at least one vector.
In an embodiment, the method includes applying, by a quantum processor, a set of quantum feature maps to the selected objects, the set of quantum maps corresponding to a set of quantum kernels. In an embodiment, the method includes evaluating, by a quantum processor, a set of parameters for a quantum feature map circuit corresponding to at least one of the set of quantum feature maps.-
公开(公告)号：US11443222B2
公开(公告)日：2022-09-13
申请号：US16666553
申请日：2019-10-29
Applicant: International Business Machines Corporation
Inventor： Jerry M. Chow , Antonio D. Corcoles-Gonzalez , Jay M. Gambetta
Abstract: A signal generating system is provided. The signal generating system provides a microwave signal to a plurality of qubits. The signal generating system includes a generator, an oscillator, a mixer, and a splitter. The oscillator generates an oscillator signal including a constant frequency. The generator generates a generator signal including an initial frequency. The mixer is electrically coupled to the generator and the oscillator. The mixer combines the generator and oscillator signals to produce the microwave signal. The splitter is electrically coupled to the mixer. The splitter fans-out the microwave signal to a plurality of physical lines. Each of the plurality of physical lines is electrically connected to a corresponding one of the plurality of qubits.
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Patent Agency Ranking
公开(公告)号：US11321625B2
公开(公告)日：2022-05-03
申请号：US16394133
申请日：2019-04-25
Applicant: International Business Machines Corporation
Inventor： Jay M. Gambetta , Ismael Faro Sertage , Ali Javadiabhari , Francisco Jose Martin Fernandez , Peng Liu , Marco Pistoia
Abstract: A hybrid data processing environment comprising a classical computing system and a quantum computing system is configured. A configuration of a first quantum circuit is produced from the classical computing system, the first quantum circuit being executable using the quantum computing system. Using the quantum computing system, the first quantum circuit is executed. Using a pattern recognition technique, a portion of the first quantum circuit that can be transformed using a first transformation operation to satisfy a constraint on the quantum circuit design is identified. The portion is transformed to a second quantum circuit according to the first transformation operation, wherein the first transformation operation comprises reconfiguring a gate in the first quantum circuit such that a qubit used in the gate complies with the constraint on the quantum circuit design while participating in the second quantum circuit. Using the quantum computing system, the second quantum circuit is executed.
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公开(公告)号：US11238360B2
公开(公告)日：2022-02-01
申请号：US15894358
申请日：2018-02-12
Applicant: International Business Machines Corporation
Inventor： Lev Samuel Bishop , Jay M. Gambetta
Abstract: The technology is generally directed towards a pulse generation component that outputs a control pulse with a timing delay. A qubit state decision component uses an analog kernel to perform a linear filtering operation on (e.g., multiplies and integrates) a qubit signal to obtain a result corresponding to a qubit state, and compares the result to a threshold value to determine a measurement outcome result corresponding to the qubit state. A conditional gate component conditionally gates the control pulse based on the measurement outcome result.
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公开(公告)号：US11194946B2
公开(公告)日：2021-12-07
申请号：US16115828
申请日：2018-08-29
Applicant: International Business Machines Corporation
Inventor： Ali Javadiabhari , Jay M. Gambetta , Andrew W. Cross , Luciano Bello , Marco Pistoia
IPC: G06F30/337 , G06F30/39 , G06N10/00 , G06F17/16
Abstract: A method for design optimization of a quantum circuit includes analyzing a first quantum circuit design based on at least one of a set of design criteria, wherein the first quantum circuit design includes a set of quantum logic gates, and wherein a design criterion in the set of design criteria includes changing a size of a matrix of transformations corresponding to a number of qubits employed in the first quantum circuit design. The embodiment further includes in the method modifying the first quantum circuit design into a transformed quantum circuit design, the modifying causing the transformed quantum circuit design to perform an operation implemented in the first quantum circuit design with a changed matrix of transformations.
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公开(公告)号：US10963809B2
公开(公告)日：2021-03-30
申请号：US16840685
申请日：2020-04-06
Applicant: International Business Machines Corporation
Inventor： Jay M. Gambetta , Antonio Mezzacapo , Ramis Movassagh , Paul K. Temme
Abstract: Techniques for performing cost function deformation in quantum approximate optimization are provided. The techniques include mapping a cost function associated with a combinatorial optimization problem to an optimization problem over allowed quantum states. A quantum Hamiltonian is constructed for the cost function, and a set of trial states are generated by a physical time evolution of the quantum hardware interspersed with control pulses. Aspects include measuring a quantum cost function for the trial states, determining a trial state resulting in optimal values, and deforming a Hamiltonian to find an optimal state and using the optimal state as a next starting state for a next optimization on a deformed Hamiltonian until an optimizer is determined with respect to a desired Hamiltonian.
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公开(公告)号：US20210004707A1
公开(公告)日：2021-01-07
申请号：US16458586
申请日：2019-07-01
Applicant: International Business Machines Corporation
Inventor： Jay M. Gambetta , Ismael Faro Sertage , Paul Nation , Francisco Jose Martin Fernandez
Abstract: Techniques for facilitating quantum pulse optimization using machine learning are provided. In one example, a system includes a classical processor and a quantum processor. The classical processor employs a quantum pulse optimizer to generate a quantum pulse based on a machine learning technique associated with one or more quantum computing processes. The quantum processor executes a quantum computing process based on the quantum pulse.
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