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公开(公告)号：US11100416B2
公开(公告)日：2021-08-24
申请号：US15771606
申请日：2016-10-27
申请人： D-WAVE SYSTEMS INC.
IPC分类号： G06N10/00
摘要： 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：US09183508B2
公开(公告)日：2015-11-10
申请号：US14453883
申请日：2014-08-07
申请人： D-Wave Systems Inc.
发明人： Andrew Douglas King
IPC分类号： G06N99/00 , G06F15/76 , H03K19/195
CPC分类号： G06N99/002 , G06F15/76 , H03K19/195
摘要： Quantum processor architectures employ unit cells tiled over an area. A unit cell may include first and second sets of qubits where each qubit in the first set crosses at least one qubit in the second set. Angular deviations between qubits in one set may allow qubits in the same set to cross one another. Each unit cell is positioned proximally adjacent at least one other unit cell. Communicatively coupling between qubits is realized through respective intra-cell and inter-cell coupling devices.
摘要翻译： 量子处理器架构采用平铺在一个区域上的单位单元。 单元单元可以包括第一组和第二组量子位，其中第一组中的每个量子位与第二组中的至少一个量子位交叉。 一组中量子位之间的角度偏差可能允许同一组中的量子位彼此交叉。 每个单位单元位于邻近至少一个其他单位单元的近侧。 通过相应的小区内和小区间耦合设备来实现量子位之间的通信耦合。
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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
申请人： D-WAVE SYSTEMS INC.
发明人： Andrew Douglas King , Alexandre Fréchette , Evgeny A. Andriyash , Trevor Michael Lanting , Emile M. Hoskinson , Mohammad H. Amin
IPC分类号： G06N10/00
摘要： 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：US10268622B2
公开(公告)日：2019-04-23
申请号：US15418497
申请日：2017-01-27
申请人： D-Wave Systems Inc.
发明人： Jeremy P. Hilton , Aidan Patrick Roy , Paul I. Bunyk , Andrew Douglas King , Kelly T. R. Boothby , Richard G. Harris , Chunqing Deng
摘要： Topologies for analog computing systems are provided. Qubits in the topology are grouped into cells, and cells are coupled to adjacent cells by inter-cell couplers. At least some cells are coupled to non-adjacent cells via long-range couplers. Long-range couplers may be arranged into coverings so that certain sets of qubits within a covering region may be coupled with a reduced number of couplers. Each cell within a covering region without a long-range coupler may be proximate to a cell with a long range coupler so that each cell within the covering region is no more than a certain coupling distance away from a long-range coupler. Long-range couplers may couple over a greater physical distance than inter-cell couplers. Long-range couplers may couple to qubits over a larger coupling region, and may extend across multiple crossing regions between qubits.
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公开(公告)号：US20160012347A1
公开(公告)日：2016-01-14
申请号：US14863045
申请日：2015-09-23
申请人： D-Wave Systems Inc.
发明人： Andrew Douglas King
CPC分类号： G06N99/002 , G06F15/76 , H03K19/195
摘要： Quantum processor architectures employ unit cells tiled over an area. A unit cell may include first and second sets of qubits where each qubit in the first set crosses at least one qubit in the second set. Angular deviations between qubits in one set may allow qubits in the same set to cross one another. Each unit cell is positioned proximally adjacent at least one other unit cell. Communicatively coupling between qubits is realized through respective intra-cell and inter-cell coupling devices.
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公开(公告)号：US20240256930A1
公开(公告)日：2024-08-01
申请号：US18514482
申请日：2023-11-20
申请人： D-WAVE SYSTEMS INC.
发明人： Sheir Yarkoni , Trevor Michael Lanting , Kelly T. R. Boothby , Andrew Douglas King , Evgeny A. Andriyash , Mohammad H. Amin
摘要： A computational method via a hybrid processor comprising an analog processor and a digital processor includes determining a first classical spin configuration via the digital processor, determining preparatory biases toward the first classical spin configuration, programming an Ising problem and the preparatory biases in the analog processor via the digital processor, evolving the analog processor in a first direction, latching the state of the analog processor for a first dwell time, programming the analog processor to remove the preparatory biases via the digital processor, determining a tunneling energy via the digital processor, determining a second dwell time via the digital processor, evolving the analog processor in a second direction until the analog processor reaches the tunneling energy, and evolving the analog processor in the first direction until the analog processor reaches a second classical spin configuration.
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公开(公告)号：US11681940B2
公开(公告)日：2023-06-20
申请号：US17379172
申请日：2021-07-19
申请人： D-WAVE SYSTEMS INC.
发明人： Andrew Douglas King , Alexandre Fréchette , Evgeny A. Andriyash , Trevor Michael Lanting , Emile M. Hoskinson , Mohammad H. Amin
IPC分类号： G06N10/00 , G06F15/163
CPC分类号： G06N10/00 , G06F15/163
摘要： 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：US20180330264A1
公开(公告)日：2018-11-15
申请号：US15771606
申请日：2016-10-27
申请人： D-WAVE SYSTEMS INC.
IPC分类号： G06N99/00 , G06F15/163
CPC分类号： G06N99/002
摘要： 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：US09881256B2
公开(公告)日：2018-01-30
申请号：US15505522
申请日：2015-08-21
申请人： D-Wave Systems Inc.
发明人： Firas Hamze , Andrew Douglas King , Jack Raymond , Aidan Patrick Roy , Robert Israel , Evgeny Andriyash , Catherine McGeoch , Mani Ranjbar
摘要： Computational systems implement problem solving using heuristic solvers or optimizers. Such may iteratively evaluate a result of processing, and modify the problem or representation thereof before repeating processing on the modified problem, until a termination condition is reached. Heuristic solvers or optimizers may execute on one or more digital processors and/or one or more quantum processors. The system may autonomously select between types of hardware devices and/or types of heuristic optimization algorithms. Such may coordinate or at least partially overlap post-processing operations with processing operations, for instance performing post-processing on an ith batch of samples while generating an (i+1)th batch of samples, e.g., so post-processing operation on the ith batch of samples does not extend in time beyond the generation of the (i+1)th batch of samples. Heuristic optimizers selection is based on pre-processing assessment of the problem, e.g., based on features extracted from the problem and for instance, on predicted success.
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公开(公告)号：US20170091650A1
公开(公告)日：2017-03-30
申请号：US15373910
申请日：2016-12-09
申请人： D-Wave Systems Inc.
发明人： Andrew Douglas King
CPC分类号： G06N99/002 , G06F15/76 , H03K19/195
摘要： Quantum processor architectures employ unit cells tiled over an area. A unit cell may include first and second sets of qubits where each qubit in the first set crosses at least one qubit in the second set. Angular deviations between qubits in one set may allow qubits in the same set to cross one another. Each unit cell is positioned proximally adjacent at least one other unit cell. Communicatively coupling between qubits is realized through respective intra-cell and inter-cell coupling devices.
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