Patents by Inventor Murray C. Thom
Murray C. Thom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180246848Abstract: A topology or hardware graph of a quantum processor is modifiable, for example prior to embedding of a problem, for instance by creating chains of qubits, where each chain which operates as a single or logical qubit to impose a logical graph on the quantum processor. A user interface (UI) allows a user to select a topology suited for embedding a particular problem or type of problem, to supply parameters that define the desired topology, or to supply or specify a problem graph or problem definition from which a processor-based system determines or selects an appropriate topology or logical graph to impose. Topologies may have regularity and/or self-similarity over the quantum processor or portions thereof, which portions may constitute unit cells. Logical graphs imposed on the quantum processor may take the form of a hypercube graph. A UI allows the user to specify a desired dimension of the hypercube graph.Type: ApplicationFiled: January 27, 2016Publication date: August 30, 2018Inventors: Adam Douglass, Richard G. Harris, Trevor Michael Lanting, Andrew Douglas King, Jack Raymond, Murray C. Thom
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Publication number: 20170373658Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: ApplicationFiled: August 9, 2017Publication date: December 28, 2017Inventors: Murray C. Thom, Alexander M. Tcaciuc, Gordon Lamont, J. Craig Petroff, Richard D. Neufeld, David S. Bruce, Sergey V. Uchaykin
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Patent number: 9762200Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: GrantFiled: December 4, 2015Date of Patent: September 12, 2017Assignee: D-Wave Systems Inc.Inventors: Murray C. Thom, Alexander M. Tcaciuc
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Publication number: 20170255629Abstract: Computational systems implement problem solving using hybrid digital/quantum computing approaches. A problem may be represented as a problem graph which is larger and/or has higher connectivity than a working and/or hardware graph of a quantum processor. A quantum processor may be used determine approximate solutions, which solutions are provided as initial states to one or more digital processors which may implement classical post-processing to generate improved solutions. Techniques for solving problems on extended, more-connected, and/or “virtual full yield” variations of the processor's actual working and/or hardware graphs are provided. A method of operation in a computational system comprising a quantum processor includes partitioning a problem graph into sub-problem graphs, and embedding a sub-problem graph onto the working graph of the quantum processor. The quantum processor and a non-quantum processor-based device generate partial samples.Type: ApplicationFiled: March 2, 2017Publication date: September 7, 2017Inventors: Murray C. Thom, Aidan P. Roy, Fabian A. Chudak, Zhengbing Bian, William G. Macready, Robert B. Israel, Tomas J. Boothby, Sheir Yarkoni, Yanbo Xue, Dmytro Korenkevych
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Publication number: 20170116159Abstract: 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, and reading out states for the qubits. The states for the qubits in the plurality of qubits correspond to a sample from the probability distribution. Operation of the sampling device may be summarized as including updating a set of samples to include the sample from the probability distribution, and returning the set of samples.Type: ApplicationFiled: January 5, 2017Publication date: April 27, 2017Inventors: Firas Hamze, James King, Evgeny Andriyash, Catherine McGeoch, Jack Raymond, Jason Rolfe, William G. Macready, Aaron Lott, Murray C. Thom
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Patent number: 9588940Abstract: 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, and reading out states for the qubits. The states for the qubits in the plurality of qubits correspond to a sample from the probability distribution. Operation of the sampling device may be summarized as including updating a set of samples to include the sample from the probability distribution, and returning the set of samples.Type: GrantFiled: April 1, 2015Date of Patent: March 7, 2017Assignee: D-Wave Systems Inc.Inventors: Firas Hamze, James King, Evgeny Andriyash, Catherine McGeoch, Jack Raymond, Jason Rolfe, William G. Macready, Aaron Lott, Murray C. Thom
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Publication number: 20160087598Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: ApplicationFiled: December 4, 2015Publication date: March 24, 2016Inventors: Murray C. Thom, Alexander M. Tcaciuc
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Patent number: 9231181Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: GrantFiled: August 28, 2012Date of Patent: January 5, 2016Assignee: D-Wave Systems Inc.Inventors: Murray C. Thom, Alexander M. Tcaciuc, Gordon Lamont, Jacob Craig Petroff, Richard David Neufeld, David S. Bruce, Sergey V. Uchaykin
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Publication number: 20150269124Abstract: 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, and reading out states for the qubits. The states for the qubits in the plurality of qubits correspond to a sample from the probability distribution. Operation of the sampling device may be summarized as including updating a set of samples to include the sample from the probability distribution, and returning the set of samples.Type: ApplicationFiled: April 1, 2015Publication date: September 24, 2015Inventors: Firas Hamze, James King, Evgeny Andriyash, Catherine McGeoch, Jack Raymond, Jason Rolfe, William G. Macready, Aaron Lott, Murray C. Thom
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Publication number: 20150263260Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: ApplicationFiled: August 28, 2012Publication date: September 17, 2015Applicant: D-WAVE SYSTEMS INC.Inventors: Murray C. Thom, Alexander M. Tcaciuc, Gordon Lamont, Jacob Craig Petroff, Richard David Neufeld, David S. Bruce, Sergey V. Uchaykin
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Patent number: 8670809Abstract: Adaptations and improvements to tubular metal powder filters include employing cross sectional geometries of any suitable shape, aligning the inner conductor off-axis, replacing the inner conductive wire with a conductive trace or a superconductive trace carried by a printed circuit board, combining multiple filters within a single common outer conductive housing, and employing meandering and other non-parallel signal paths. The various adaptations and improvements are designed to accommodate single-ended and differential signaling, as well as superconducting and non-superconducting applications.Type: GrantFiled: December 6, 2012Date of Patent: March 11, 2014Assignee: D-Wave Systems Inc.Inventors: Murray C. Thom, Sergey Uchaykin, Thomas Mahon, David Pires, Peter Spear, Jacob Craig Petroff
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Patent number: 8441329Abstract: An I/O system and device for use with superconducting device provides multi-stage filtering using superconducting electrical pathways, while providing good thermal conductivity to maintain low temperature of the various components and allowing the easy mounting and dismounting of a device sample from a refrigerated environment. Filtering may include a lumped element filter assembly including multiple plates each carrying a number of lumped element filters. Filtering may include a metal powder filter assembly including multiple metal power filters formed in passages of a substantially non-magnetic portions. A device sample holder assembly secures a device sample, for example a superconducting quantum processor, and provides signals, ground and good thermal conduction.Type: GrantFiled: January 18, 2008Date of Patent: May 14, 2013Assignee: D-Wave Systems Inc.Inventors: Murray C. Thom, Andrew Berkley, Alexander M. Tcaciuc, Mark Johnson, Paul Bunyk, Jaspaul Chung, Jacob Craig Petroff, Florin Cioata
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Patent number: 8346325Abstract: Adaptations and improvements to tubular metal powder filters include employing non-circular cross sectional geometries, aligning the inner conductor off-axis, replacing the inner conductive wire with a conductive trace carried on a printed circuit board, combining multiple filters within a single common outer conductive housing, and employing meandering and other non-parallel signal paths. The various adaptations and improvements are designed to accommodate single-ended and differential signaling, as well as superconducting and non-superconducting applications.Type: GrantFiled: January 21, 2011Date of Patent: January 1, 2013Assignee: D-Wave Systems Inc.Inventors: Murray C. Thom, Sergey Uchaykin, Thomas Mahon, David Pires, Peter Spear, Jacob Craig Petroff
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Patent number: 8279022Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: GrantFiled: July 15, 2009Date of Patent: October 2, 2012Assignee: D-Wave Systems Inc.Inventors: Murray C. Thom, Alexander M. Tcaciuc, Gordon Lamont, Jacob Craig Petroff, Richard David Neufeld, David S. Bruce, Sergey V. Uchaykin
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Publication number: 20120135867Abstract: An I/O system and device for use with superconducting device provides multi-stage filtering using superconducting electrical pathways, while providing good thermal conductivity to maintain low temperature of the various components and allowing the easy mounting and dismounting of a device sample from a refrigerated environment. Filtering may include a lumped element filter assembly including multiple plates each carrying a number of lumped element filters. Filtering may include a metal powder filter assembly including multiple metal power filters formed in passages of a substantially non-magnetic portions. A device sample holder assembly secures a device sample, for example a superconducting quantum processor, and provides signals, ground and good thermal conduction.Type: ApplicationFiled: January 18, 2008Publication date: May 31, 2012Inventors: Murray C. Thom, Andrew Berkley, Alexander M. Tcaciuc, Mark Johnson, Paul Bunyk, Jaspaul Chung, Jacob Craig Petroff, Florin Ciota
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Patent number: 8008991Abstract: An electrical filter includes a circuit board with an insulative substrate of alternating wide and narrow portions between input and output ends. Capacitors received in through-holes in the wide portions are electrically coupled to signal traces on a signal surface and ground traces on a ground surface of the circuit board. Conductive coils about narrow portions may form inductors, electrically coupled between the signal traces and an input and/or output. The circuit board, capacitors and inductors may be positioned in a first enclosure, (e.g., tube), with sealed electrical connections to an exterior. The first enclosure may be positioned in a second enclosure (e.g., tube). The filter may also include a high frequency dissipation filter section employing a metal powder filter, with metal powder and epoxy. Non-magnetic and/or superconducting materials may be employed.Type: GrantFiled: January 18, 2008Date of Patent: August 30, 2011Assignee: D-Wave Systems Inc.Inventors: Alexander M. Tcaciuc, Murray C. Thom
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Publication number: 20110183853Abstract: Adaptations and improvements to tubular metal powder filters include employing non-circular cross sectional geometries, aligning the inner conductor off-axis, replacing the inner conductive wire with a conductive trace carried on a printed circuit board, combining multiple filters within a single common outer conductive housing, and employing meandering and other non-parallel signal paths. The various adaptations and improvements are designed to accommodate single-ended and differential signaling, as well as superconducting and non-superconducting applications.Type: ApplicationFiled: January 21, 2011Publication date: July 28, 2011Inventors: Murray C. Thom, Sergey Uchaykin, Thomas Mahon, David Pires, Peter Spear, Jacob Craig Petroff
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Patent number: 7969805Abstract: A structure comprising (i) a first information device, (ii) a second information device, (iii) a first coupling element and (iv) a second coupling element is provided. The first information device has at least a first lobe and a second lobe that are in electrical communication with each other. The second information device and has at least a first lobe and a second lobe that are in electrical communication with each other. The first coupling element inductively couples the first lobe of the first information device to the first lobe of the second information device. The second coupling element inductively couples the first lobe of the first information device to the second lobe of the second information device.Type: GrantFiled: October 7, 2009Date of Patent: June 28, 2011Assignee: D-Wave Systems, Inc.Inventors: Murray C. Thom, Andrew J. Berkley, Alexander Maassen van den Brink
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Publication number: 20100157552Abstract: Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable.Type: ApplicationFiled: July 15, 2009Publication date: June 24, 2010Inventors: Murray C. Thom, Alexander M. Tcaciuc, Gordon Lamont, Jacob Craig Petroff, Richard David Neufeld, David S. Bruce, Sergey V. Uchaykin
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Publication number: 20100085827Abstract: A structure comprising (i) a first information device, (ii) a second information device, (iii) a first coupling element and (iv) a second coupling element is provided. The first information device has at least a first lobe and a second lobe that are in electrical communication with each other. The second information device and has at least a first lobe and a second lobe that are in electrical communication with each other. The first coupling element inductively couples the first lobe of the first information device to the first lobe of the second information device. The second coupling element inductively couples the first lobe of the first information device to the second lobe of the second information device.Type: ApplicationFiled: October 7, 2009Publication date: April 8, 2010Applicant: D-Wave Systems, Inc.Inventors: Murray C. Thom, Andrew J. Berkley, Alexander Maassen van den Brink