公开(公告)号：US20180308007A1

公开(公告)日：2018-10-25

申请号：US15766755

申请日：2016-10-14

Applicant: D-WAVE SYSTEMS INC.

Inventor： Mohammad H.S. Amin ,  Evgeny Andriyash ,  Jason Rolfe

IPC: G06N99/00

CPC classification number: G06N99/005 ,  B82Y10/00 ,  G06N3/0445 ,  G06N99/002

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.

公开(公告)号：US20160012346A1

公开(公告)日：2016-01-14

申请号：US14860087

申请日：2015-09-21

Applicant: D-Wave Systems Inc.

Inventor： Jacob Daniel Biamonte ,  Andrew J. Berkley ,  Mohammad H.S. Amin

IPC: G06N99/00

CPC classification number: G06N99/002 ,  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.

Abstract translation: 设备，方法和文章有利地允许量子位之间的通信提供用于通用绝热量子计算的架构。 该架构包括第一耦合基A1B1和不与第一基A1B1通信的第二耦合基A2B2。

公开(公告)号：US20150111754A1

公开(公告)日：2015-04-23

申请号：US14520139

申请日：2014-10-21

Applicant: D-Wave Systems Inc.

Inventor： Richard G. Harris ,  Mohammad H.S. Amin ,  Anatoly Smirnov

IPC: G06N99/00 ,  G11C11/44

CPC classification number: G06N99/002 ,  G11C11/44 ,  H03K3/38 ,  H03K19/1952

Abstract: A quantum processor is operable as a universal adiabatic quantum computing system. The quantum processor includes physical qubits, with at least a first and second communicative coupling available between pairs of qubits via an in-situ tunable superconducting capacitive coupler and an in-situ tunable superconducting inductive coupler, respectively. Tunable couplers provide diagonal and off-diagonal coupling. Compound Josephson junctions (CJJs) of the tunable couplers are responsive to a flux bias to tune a sign and magnitude of a sum of a capacitance of a fixed capacitor and a tunable capacitance which is mediated across a pair of coupling capacitors. The qubits may be hybrid qubits, operable in a flux regime or a charge regime. Qubits may include a pair of CJJs that interrupt a loop of material and which are separated by an island of superconducting material which is voltage biased with respect to a qubit body.

Abstract translation: 量子处理器可用作通用绝热量子计算系统。 量子处理器包括物理量子位，其中至少第一和第二通信耦合分别通过原位可调谐超导电容耦合器和原位可调谐超导感应耦合器在成对的量子位之间可用。 可调谐耦合器提供对角线和非对角线耦合。 可调谐耦合器的复合约瑟夫逊结（CJJ）响应于通量偏置来调节固定电容器的电容和在一对耦合电容器之间介导的可调谐电容之和的符号和幅度。 量子位可以是混合量子位，可在通量状态或电荷状态下操作。 Qubits可以包括一对中断材料环的CJJ，它们被相对于量子位体电压偏置的超导材料岛隔开。