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公开(公告)号：US10789329B2
公开(公告)日：2020-09-29
申请号：US16673478
申请日：2019-11-04
Applicant: D-WAVE SYSTEMS INC.
Inventor： Trevor Michael Lanting
Abstract: Systems, devices, articles, methods, and techniques for advancing quantum computing by removing unwanted interactions in one or more quantum processor. One approach includes creating an updated plurality of programmable parameters based at least in part on a received value for the characteristic magnetic susceptibility of the qubit in the at least one quantum processor, and returning the updated plurality of programmable parameters. Examples programmable parameters include local biases, and coupling values characterizing the problem Hamilton. Also, for example, a quantum processor may be summarized as including a first loop of superconducting material, a first compound Josephson junction interrupting the first loop of superconducting material, a first coupler inductively coupled to the first loop of superconducting material, a second coupler inductively coupled to the first loop of superconducting material, and a second loop of superconducting material proximally placed to the first loop of superconducting material inductively coupled to the first coupler and the second coupler.
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公开(公告)号：US20180219150A1
公开(公告)日：2018-08-02
申请号：US15503367
申请日：2015-08-12
Applicant: D-Wave Systems Inc.
Inventor： Trevor Michael Lanting , Eric G. Ladizinsky , J. Jason Yao , Byong Hyop Oh
IPC: H01L39/24 , H01L39/22 , H01L21/768
CPC classification number: H01L39/2493 , H01L21/76891 , H01L23/53285 , H01L27/18 , H01L39/223
Abstract: Fabricating wiring layers above a Josephson junction multi-layer may include removing a part of the multilayer; depositing an insulating layer to overlie a part of the multilayer; and patterning the insulating layer to define a hole in the insulating layer. The method includes depositing a first superconducting wiring layer over a part of the insulating layer and within a portion of the hole. Further, insulating and wiring layers may be deposited and a topmost wiring layer defined. The method includes depositing a passivating layer to overlie the topmost wiring layer. Fabricating a superconducting integrated circuit comprising a hybrid dielectric system may include depositing a high-quality dielectric layer that overlies a superconducting feature. The method includes depositing a second dielectric layer that overlies at least part of the high-quality dielectric layer. The second dielectric layer can comprise a conventional dielectric material.
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13.发明申请公开(公告)号：US20170300827A1
公开(公告)日：2017-10-19
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: G06N99/00
CPC classification number: 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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公开(公告)号：US09710758B2
公开(公告)日：2017-07-18
申请号：US14691268
申请日：2015-04-20
Applicant: D-Wave Systems Inc.
Inventor： Paul I. Bunyk , Mohammad H. S. Amin , Richard G. Harris , Trevor Michael Lanting , Mark W. Johnson , Jeremy P. Hilton , Emile M. Hoskinson
CPC classification number: G06N99/002 , G06F15/82
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：US11836574B2
公开(公告)日：2023-12-05
申请号：US17234469
申请日：2021-04-19
Applicant: D-WAVE SYSTEMS INC.
Inventor： Mohammad H. S. Amin , Trevor Michael Lanting , Colin Enderud
IPC: G06N10/00
CPC classification number: 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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Patent Agency Ranking
公开(公告)号：US11663512B2
公开(公告)日：2023-05-30
申请号：US17584600
申请日：2022-01-26
Applicant: D-WAVE SYSTEMS INC.
Inventor： Steven P. Reinhardt , Andrew D. King , Loren J. Swenson , Warren T. E. Wilkinson , Trevor Michael Lanting
IPC: G06N10/00 , G05B19/042
CPC classification number: G06N10/00 , G05B19/042 , G05B2219/25071
Abstract: Computational systems and methods employ characteristics of a quantum processor determined or sampled between a start and an end of an annealing evolution per an annealing schedule. The annealing evolution can be reinitialized, reversed or continued after determination. The annealing evolution can be interrupted. The annealing evolution can be ramped immediately prior to or as part of determining the characteristics. The annealing evolution can be paused or not paused immediately prior to ramping. A second representation of a problem can be generated based at least in part on the determined characteristics from an annealing evolution performed on a first representation of the problem. The determined characteristics can be autonomously compared to an expected behavior, and alerts optionally provided and/or the annealing evolution optionally terminated based on the comparison. Iterations of annealing evolutions may be performed until an exit condition occurs.
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公开(公告)号：US20210350269A1
公开(公告)日：2021-11-11
申请号：US17379172
申请日：2021-07-19
Applicant: D-WAVE SYSTEMS INC.
Inventor： Andrew Douglas King , Alexandre Fréchette , Evgeny A. Andriyash , Trevor Michael Lanting , Emile M. Hoskinson , Mohammad H. Amin
IPC: G06N10/00
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：US20210241160A1
公开(公告)日：2021-08-05
申请号：US17234469
申请日：2021-04-19
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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19.发明申请公开(公告)号：US20180373996A1
公开(公告)日：2018-12-27
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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公开(公告)号：US20180267933A1
公开(公告)日：2018-09-20
申请号：US15984074
申请日：2018-05-18
Applicant: D-Wave Systems Inc.
Inventor： Trevor Michael Lanting
Abstract: Systems, devices, articles, methods, and techniques for advancing quantum computing by removing unwanted interactions in one or more quantum processor. One approach includes creating an updated plurality of programmable parameters based at least in part on a received value for the characteristic magnetic susceptibility of the qubit in the at least one quantum processor, and returning the updated plurality of programmable parameters. Examples programmable parameters include local biases, and coupling values characterizing the problem Hamilton. Also, for example, a quantum processor may be summarized as including a first loop of superconducting material, a first compound Josephson junction interrupting the first loop of superconducting material, a first coupler inductively coupled to the first loop of superconducting material, a second coupler inductively coupled to the first loop of superconducting material, and a second loop of superconducting material proximally placed to the first loop of superconducting material inductively coupled to the first coupler and the second coupler.
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