D-wave Systems Inc.

Other

David Grant

Geordie Rose

Andrew Joseph Berkley

Paul I Bunyk

Mohammad H S Amin

Miles F H Steininger

Peter Love

Alexander Maassen Van Den Brink

William G Macready

Michael Coury

Alec Maassen Van Den Brink

Andrew Berkley

Andrew A Berkley

Alec M Van Den Brink

Miles Fh Steininger

Mohammed Hs Amin

Mohammed H Amin

Miles F Steininger

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.

Analog processor comprising quantum devices

Methods and systems for solving various computational problems with quantum processors are provided. Such quantum processors comprise a plurality of quantum devices together with a plurality of coupling devices. The quantum processor is initialized by setting states of the quantum devices and coupling devices and allowed to evolve to a final state which approximates a natural ground state of the computational problem. The final state can include values of nodes arranged in a lattice in the quantum processor and can represent a solution to the computational processor. The computational problem can have complexity P, NP, NP-Hard, or NP-Complete and may be mapped to a quantum processor with nearest-neighbor and next-nearest-neighbor couplings. The solution to the computational problem can be read out from the quantum processor and transmitted as a data signal embodied in a carrier wave.

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. 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. A method of determining a result of a computational problem using an analog processor includes receiving at a first digital computer, including a digital processor, an instance of the computational problem defined over an input graph, wherein the input graph is non-planar; and determining a mapping of the instance of the computational problem onto the analog processor, by the digital processor.

Approaches to embedding source graphs into targets graphs in a computing system are disclosed. Such may be advantageously facilitate computation with computing systems that employ one or more analog processors, for example one or more quantum processors.

Graph embedding techniques

A golf spike system includes a stud having an upper portion in a generally cylindrical configuration with screw threads on its exterior surface, a lower portion having a generally cone shaped configuration, a first intermediate portion adjacent to the upper portion having a surface adapted to mate with a correspondingly shaped surface of a washer, and a second intermediate portion adjacent to the lower portion having a surface adapted to cooperatively couple with an insertion tool and a washer having an aperture therethrough, the aperture having an internal surface adapted to cooperatively receive the first intermediate portion for being rotated thereby during the coupling and uncoupling of the golf spike system with respect to a golf shoe.

Stud and washer system for golf shoe spikes

Golf spike

Growing community of inventors

Vancouver, Canada

David Grant