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31.发明申请公开(公告)号：US20200090050A1
公开(公告)日：2020-03-19
申请号：US16562192
申请日：2019-09-05
Applicant: D-WAVE SYSTEMS INC.
Inventor： Jason T. Rolfe , Seyed Ali Saberali , William G. Macready
Abstract: Generative machine learning models, such as variational autoencoders, with comparatively sparse latent spaces are provided. Continuous latent variables are activated and/or inactivated based on a state of the latent space. Activation may be controlled by corresponding binary latent variables and/or by rectification of probability distributions defined over the latent space. Sparsification may be supported by normalization of terms, such as providing an L1 or L2 prior.
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公开(公告)号：US20200084882A1
公开(公告)日：2020-03-12
申请号：US16560517
申请日：2019-09-04
Applicant: D-Wave Systems Inc.
Inventor： Richard D. Neufeld
Abstract: Systems, methods, and devices for electrically coupling an integrated circuit to a set of coaxial lines via a printed circuit board assembly are described. A device sample holder includes a printed circuit board that is operable to edge-couple to an integrated circuit. A surface of the printed circuit board that carries a set of coaxial connectors is orthogonal to another surface of the printed circuit board that exposes a set of conductive traces. The set of conductive traces are operable to electrically couple to a set of conductive paths of an integrated circuit to provide a communicative path between the integrated circuit and components of an input/output system in a refrigerated environment.
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公开(公告)号：US20200068722A1
公开(公告)日：2020-02-27
申请号：US16465765
申请日：2017-12-07
Applicant: D-Wave Systems Inc.
Inventor： Richard D. Neufeld
Abstract: A multilayer circuit board structure includes superconducting connections to internal layers thereof, for example by inclusion of superconducting vias. Two or more panels can each comprise respective electrically insulative substrates, each have one or more through-holes, and also include a respective bimetal foil on at least a portion of a respective surface thereof, which is patterned to form traces. The bimetal foil includes a first metal that is non-superconductive in a first temperature range and a second metal that is superconductive in the first temperature range. The panels are plated to deposit a third metal on exposed traces of the second metal, the third metal superconductive in the first temperature range. Panels are join (e.g., laminated) to form at least a three-layer superconducting printed circuit board with an inner layer, two outer layers, and superconducting vias between the inner layer and at least one of the two outer layers.
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公开(公告)号：US20190324941A1
公开(公告)日：2019-10-24
申请号：US16421211
申请日：2019-05-23
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：US20190244680A1
公开(公告)日：2019-08-08
申请号：US16270273
申请日：2019-02-07
Applicant: D-WAVE SYSTEMS INC.
Inventor： Jason Tyler Rolfe , Karsten J. Kreis
Abstract: Machine-learning (ML) techniques and systems are advantageously employed in areas such as psychiatric genetics, and analysis of gene expression. Generative ML may be performed over large datasets to infer new pleiotropic effects of genetic variants in multiple neuropsychiatric diseases. Deep ML may infer information about psychiatric genetics. ML may realize an efficient estimation of multi-disease genetic and environmental correlation matrices. ML may obtaining protein expression data and generating a mapping between the protein expression data and at least one disease. ML may be performed on a data that that jointly models multiple diseases. Quantum processing can be advantageously employed in ML scenarios.
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Patent Agency Ranking
公开(公告)号：US20190228331A1
公开(公告)日：2019-07-25
申请号：US16258082
申请日：2019-01-25
Applicant: D-WAVE SYSTEMS INC.
Inventor： Richard G. Harris , Paul I. Bunyk , Mohammad H.S. Amin , Emile M. Hoskinson
Abstract: In a quantum processor some couplers couple a given qubit to a nearest neighbor qubit (e.g., vertically and horizontally in an ordered 2D array), other couplers couple to next-nearest neighbor qubits (e.g., diagonally in the ordered 2D array). Couplers may include half-couplers, to selectively provide communicative coupling between a given qubit and other qubits, which may or may not be nearest or even next-nearest-neighbors. Tunable couplers selective mediate communicative coupling. A control system may impose a connectivity on a quantum processor, different than an “as designed” or “as manufactured” physical connectivity. Imposition may be via a digital processor processing a working or updated working graph, to map or embed a problem graph. A set of exclude qubits may be created from a comparison of hardware and working graphs. An annealing schedule may adjust a respective normalized inductance of one or more qubits, for instance to exclude certain qubits.
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公开(公告)号：US10346508B2
公开(公告)日：2019-07-09
申请号：US15870411
申请日：2018-01-12
Applicant: D-Wave Systems Inc.
Inventor： Mohammad H. Amin , Evgeny A. Andriyash
Abstract: The systems, devices, articles, and methods generally relate to sampling from an available probability distribution. The samples maybe used to create a desirable probability distribution, for instance for use in computing values used in computational techniques including: Importance Sampling and Markov chain Monte Carlo systems. An analog processor may operate as a sample generator, for example by: programming the analog processor with a configuration of the number of programmable parameters for the analog processor, which corresponds to a probability distribution over qubits of the analog processor, evolving the analog processor with a fast ramp operation, and reading out states for the qubits. The state for the qubits may be post processes and/or used to calculate importance weights.
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公开(公告)号：US20180330264A1
公开(公告)日：2018-11-15
申请号：US15771606
申请日：2016-10-27
Applicant: D-WAVE SYSTEMS INC.
Inventor： Trevor Michael Lanting , Andrew Douglas King
IPC: G06N99/00 , G06F15/163
CPC classification number: G06N99/002
Abstract: Degeneracy in analog processor (e.g., quantum processor) operation is mitigated via use of floppy qubits or domains of floppy qubits (i.e., qubit(s) for which the state can be flipped with no change in energy), which can significantly boost hardware performance on certain problems, as well as improve hardware performance for more general problem sets. Samples are drawn from an analog processor, and devices comprising the analog processor evaluated for floppiness. A normalized floppiness metric is calculated, and an offset added to advance the device in annealing. Degeneracy in a hybrid computing system that comprises a quantum processor is mitigated by determining a magnetic susceptibility of a qubit, and tuning a tunneling rate for the qubit based on a tunneling rate offset determined based on the magnetic susceptibility. Quantum annealing evolution is controlled by causing the evolution to pause for a determined pause duration.
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公开(公告)号：US20180314970A1
公开(公告)日：2018-11-01
申请号：US16029040
申请日：2018-07-06
Applicant: D-Wave Systems Inc.
Inventor： Richard G. Harris , Mohammad H. Amin , Anatoly Smirnov
IPC: G06N99/00 , H03K19/195
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.
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公开(公告)号：US20180314968A1
公开(公告)日：2018-11-01
申请号：US15962729
申请日：2018-04-25
Applicant: D-Wave Systems Inc.
Inventor： Jacob Daniel Biamonte , Andrew J. Berkley , Mohammad H.S. Amin
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.
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