公开(公告)号：US09727823B2

公开(公告)日：2017-08-08

申请号：US14339289

申请日：2014-07-23

Applicant: D-WAVE SYSTEMS INC.

Inventor： Mohammad H. S. Amin ,  Trevor Michael Lanting ,  Colin Enderud

IPC: G06F15/00 ,  G06F15/18 ,  G06N99/00

CPC classification number: G06N99/002

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.

公开(公告)号：US20170017894A1

公开(公告)日：2017-01-19

申请号：US14829342

申请日：2015-08-18

Applicant: D-Wave Systems Inc.

Inventor： Trevor Michael Lanting ,  Andrew King

IPC: G06N99/00 ,  G06F15/82

Abstract: Techniques for improving the performance of a quantum processor are described. Some techniques employ reducing intrinsic/control errors by using quantum processor-wide problems specifically crafted to reveal errors so that corrections may be applied. Corrections may be applied to physical qubits, logical qubits, and couplers so that problems may be solved using quantum processors with greater accuracy.

Abstract translation: 描述了用于改善量子处理器的性能的技术。 一些技术通过使用专门制作的量子处理器范围的问题来减少内在/控制误差，以揭示错误，从而可以应用校正。 校正可以应用于物理量子位，逻辑量子位和耦合器，以便可以使用量子处理器更精确地解决问题。

公开(公告)号：US09129224B2

公开(公告)日：2015-09-08

申请号：US14340291

申请日：2014-07-24

Applicant: D-WAVE SYSTEMS INC.

Inventor： Trevor Michael Lanting ,  Colin Enderud ,  Elena Tolkacheva

IPC: H03K19/195 ,  G06N99/00

CPC classification number: G06N99/002

Abstract: Increasing the energy scale of a quantum processor improves its performance. Energy scale of a quantum processor may be increased by increasing the coupling strength of communicatively coupled superconducting devices comprised in the quantum processor. Configuring the physical dimensions of communicatively coupled superconducting devices such that an intentional direct coupling is induced between a pair of superconducting devices communicatively coupled by a coupling device may controllably add an additional mutual inductance to the mutual inductance of the pair of superconducting devices. Furthermore, reducing the beta parameter of a coupling device may improve the tunability of the coupling device. The combined effects of improved tunability of the coupling devices and the increased coupling strength between superconducting devices communicatively coupled by respective coupling devices comprised in the quantum processor may thus improve the performance of the quantum processor.

Abstract translation: 增加量子处理器的能量规格提高了其性能。 可以通过增加包含在量子处理器中的通信耦合的超导装置的耦合强度来增加量子处理器的能量级。 配置通信耦合的超导装置的物理尺寸，使得在由耦合装置通信耦合的一对超导装置之间引起有意的直接耦合可以可控地向一对超导装置的互感增加额外的互感。 此外，降低耦合装置的β参数可以提高耦合装置的可调性。 耦合器件的改进的可调谐性以及通过由包含在量子处理器中的相应耦合器件通信耦合的超导器件之间增加的耦合强度的组合效应可以改善量子处理器的性能。

公开(公告)号：US20150032991A1

公开(公告)日：2015-01-29

申请号：US14340291

申请日：2014-07-24

Applicant: D-WAVE SYSTEMS INC.

Inventor： Trevor Michael Lanting ,  Colin Enderud ,  Elena Tolkacheva

IPC: G06F15/82 ,  G06N99/00

CPC classification number: G06N99/002

Abstract: Increasing the energy scale of a quantum processor improves its performance. Energy scale of a quantum processor may be increased by increasing the coupling strength of communicatively coupled superconducting devices comprised in the quantum processor. Configuring the physical dimensions of communicatively coupled superconducting devices such that an intentional direct coupling is induced between a pair of superconducting devices communicatively coupled by a coupling device may controllably add an additional mutual inductance to the mutual inductance of the pair of superconducting devices. Furthermore, reducing the beta parameter of a coupling device may improve the tunability of the coupling device. The combined effects of improved tunability of the coupling devices and the increased coupling strength between superconducting devices communicatively coupled by respective coupling devices comprised in the quantum processor may thus improve the performance of the quantum processor.

Abstract translation: 增加量子处理器的能量规格提高了其性能。 可以通过增加包含在量子处理器中的通信耦合的超导装置的耦合强度来增加量子处理器的能量级。 配置通信耦合的超导装置的物理尺寸，使得在由耦合装置通信耦合的一对超导装置之间引起有意的直接耦合可以可控制地向一对超导装置的互感增加额外的互感。 此外，降低耦合装置的β参数可以提高耦合装置的可调性。 耦合器件的改进的可调谐性以及通过由包含在量子处理器中的相应耦合器件通信耦合的超导器件之间增加的耦合强度的组合效应可以改善量子处理器的性能。

公开(公告)号：US12190203B2

公开(公告)日：2025-01-07

申请号：US18385226

申请日：2023-10-30

Applicant: D-WAVE SYSTEMS INC.

Inventor： Mohammad H. 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.

公开(公告)号：US11941486B2

公开(公告)日：2024-03-26

申请号：US18137271

申请日：2023-04-20

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.

公开(公告)号：US11263547B2

公开(公告)日：2022-03-01

申请号：US15881307

申请日：2018-01-26

Applicant: D-Wave Systems Inc. (a British Columbia company)

Inventor： Steven P. Reinhardt ,  Andrew D. King ,  Loren J. Swenson ,  Warren T. E. Wilkinson ,  Trevor Michael Lanting

IPC: G06N10/00 ,  G05B19/042

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.

公开(公告)号：US11100416B2

公开(公告)日：2021-08-24

申请号：US15771606

申请日：2016-10-27

Applicant: D-WAVE SYSTEMS INC.

Inventor： Trevor Michael Lanting ,  Andrew Douglas King

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.

公开(公告)号：US11010683B2

公开(公告)日：2021-05-18

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: 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.

公开(公告)号：US10552757B2

公开(公告)日：2020-02-04

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

IPC: G06N10/00 ,  G06F15/82

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.