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公开(公告)号：US11995513B2
公开(公告)日：2024-05-28
申请号：US16936742
申请日：2020-07-23
Applicant: D-WAVE SYSTEMS INC.
Inventor： Mohammad H. S. Amin , Mark W. Johnson
IPC: G06N10/00
CPC classification number: G06N10/00
Abstract: A second problem Hamiltonian may replace a first problem Hamiltonian during evolution of an analog processor (e.g., quantum processor) during a first iteration in solving a first problem. This may be repeated during a second, or further successive iterations on the first problem, following re-initialization of the analog processor. An analog processor may evolve under a first non-monotonic evolution schedule during a first iteration, and second non-monotonic evolution schedule under second, or additional non-monotonic evolution schedule under even further iterations. A first graph and second graph may each be processed to extract final states versus a plurality of evolution schedules, and a determination made as to whether the first graph is isomorphic with respect to the second graph. An analog processor may evolve by decreasing a temperature of, and a set of quantum fluctuations, within the analog processor until the analog processor reaches a state preferred by a problem Hamiltonian.
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公开(公告)号：US11093440B2
公开(公告)日：2021-08-17
申请号：US16859672
申请日：2020-04-27
Applicant: D-WAVE SYSTEMS INC.
Inventor： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul I. Bunyk , Andrew J. Berkley
Abstract: Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
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公开(公告)号：US11062227B2
公开(公告)日：2021-07-13
申请号：US15766755
申请日：2016-10-14
Applicant: D-WAVE SYSTEMS INC.
Inventor： Mohammad H. S. Amin , Evgeny Andriyash , Jason Rolfe
Abstract: A hybrid computer generates samples for machine learning. The hybrid computer includes a processor that implements a Boltzmann machine, e.g., a quantum Boltzmann machine, which returns equilibrium samples from eigenstates of a quantum Hamiltonian. Subsets of samples are provided to training and validations modules. Operation can include: receiving a training set; preparing a model described by an Ising Hamiltonian; initializing model parameters; segmenting the training set into subsets; creating a sample set by repeatedly drawing samples until the determined number of samples has been drawn; and updating the model. Operation can include partitioning the training set into input and output data sets, and determining a conditional probability distribution that describes a probability of observing an output vector given a selected input vector, e.g., determining a conditional probability by performing a number of operations to minimize an upper bound for a log-likelihood of the conditional probability distribution.
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公开(公告)号：US10346349B2
公开(公告)日：2019-07-09
申请号：US16173846
申请日：2018-10-29
Applicant: D-WAVE SYSTEMS INC.
Inventor： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul I. Bunyk , Andrew J. Berkley
Abstract: Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
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Patent Agency Ranking
公开(公告)号：US20140229705A1
公开(公告)日：2014-08-14
申请号：US14175731
申请日：2014-02-07
Applicant: D-Wave Systems Inc.
Inventor： Alexander Maassen van den Brink , Peter Love , Mohammad H. S. Amin , Geordie Rose , David Grant , Miles F. H. Steininger , Paul I. Bunyk , Andrew J. Berkley
IPC: G06F15/76
Abstract: Analog processors for solving various computational problems are provided. Such analog processors comprise a plurality of quantum devices, arranged in a lattice, together with a plurality of coupling devices. The analog processors further comprise bias control systems each configured to apply a local effective bias on a corresponding quantum device. A set of coupling devices in the plurality of coupling devices is configured to couple nearest-neighbor quantum devices in the lattice. Another set of coupling devices is configured to couple next-nearest neighbor quantum devices. The analog processors further comprise a plurality of coupling control systems each configured to tune the coupling value of a corresponding coupling device in the plurality of coupling devices to a coupling. Such quantum processors further comprise a set of readout devices each configured to measure the information from a corresponding quantum device in the plurality of quantum devices.
Abstract translation: 提供了用于解决各种计算问题的模拟处理器。 这种模拟处理器包括与多个耦合装置一起布置成格子的多个量子器件。 模拟处理器进一步包括偏置控制系统，每个偏置控制系统被配置为在对应的量子器件上施加局部有效偏置。 多个耦合装置中的一组耦合装置被配置为耦合格子中的最近邻量子器件。 另一组耦合器件配置成耦合下一个最近邻量子器件。 模拟处理器还包括多个耦合控制系统，每个耦合控制系统被配置为将多个耦合装置中的对应耦合装置的耦合值调谐到耦合。 这种量子处理器还包括一组读出装置，每个读出装置被配置为从多个量子器件中的对应的量子器件测量信息。
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公开(公告)号：US11816536B2
公开(公告)日：2023-11-14
申请号：US17113847
申请日：2020-12-07
Applicant: D-WAVE SYSTEMS INC.
Inventor： Jacob Daniel Biamonte , Andrew J. Berkley , Mohammad H. S. Amin
CPC classification number: G06N10/00 , B82Y10/00 , G06N99/00 , Y10S977/933
Abstract: Devices, methods and articles advantageously allow communications between qubits to provide an architecture for universal adiabatic quantum computation. The architecture includes a first coupled basis A1B1 and a second coupled basis A2B2 that does not commute with the first basis A1B1.
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公开(公告)号：US11010683B2
公开(公告)日：2021-05-18
申请号：US15641051
申请日：2017-07-03
Applicant: D-Wave Systems Inc.
Inventor： Mohammad H. S. Amin , Trevor Michael Lanting , Colin Enderud
IPC: G06N10/00
Abstract: Achieving orthogonal control of non-orthogonal qubit parameters of a logical qubit allows for increasing the length of a qubit chain thereby increasing the effective connectivity of the qubit chain. A hybrid qubit is formed by communicatively coupling a dedicated second qubit to a first qubit. By tuning a programmable parameter of the second qubit of a hybrid qubit, an effective programmable parameter of the hybrid qubit is adjusted without affecting another effective programmable parameter of the hybrid qubit thereby achieving orthogonal control of otherwise non-orthogonal qubit parameters. The length of the logical qubit may thus be increased by communicatively coupling a plurality of such hybrid qubits together.
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18.发明授权公开(公告)号：US10552757B2
公开(公告)日：2020-02-04
申请号：US16057500
申请日：2018-08-07
Applicant: D-Wave Systems Inc.
Inventor： Mohammad H. S. Amin , Andrew J. Berkley , Richard G. Harris , Trevor Michael Lanting , Anatoly Yu Smirnov
Abstract: Systems and methods for employing macroscopic resonant tunneling operations in quantum processors are described. New modes of use for quantum processor architectures employ probe qubits to determine energy eigenvalues of a problem Hamiltonian through macroscopic resonant tunneling operations. A dedicated probe qubit design that may be added to quantum processor architectures is also described. The dedicated probe qubit enables improved performance of macroscopic resonant tunneling operations and, consequently, improved performance of the new modes of use described.
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19.发明授权公开(公告)号：US10068180B2
公开(公告)日：2018-09-04
申请号：US14896259
申请日：2013-10-22
Applicant: D-Wave Systems Inc.
Inventor： Mohammad H. S. Amin , Andrew J. Berkley , Richard G. Harris , Trevor Michael Lanting , Anatoly Yu Smirnov
Abstract: Systems and methods for employing macroscopic resonant tunneling operations in quantum processors are described. New modes of use for quantum processor architectures employ probe qubits to determine energy eigenvalues of a problem Hamiltonian through macroscopic resonant tunneling operations. A dedicated probe qubit design that may be added to quantum processor architectures is also described. The dedicated probe qubit enables improved performance of macroscopic resonant tunneling operations and, consequently, improved performance of the new modes of use described.
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