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公开(公告)号：US10726351B1
公开(公告)日：2020-07-28
申请号：US16265867
申请日：2019-02-01
IPC分类号： H03K19/19 , G06N10/00 , H03K19/195 , B82Y10/00
摘要： A system and method for controlling superconducting qubits is provided. In some aspects the method includes assembling, using a controller of a quantum computing system, a pulse subsequence that comprises pairs of voltage pulses timed symmetrically with respect to a period corresponding to a qubit frequency of a superconducting qubit in the quantum computing system. The method also includes generating, using the controller, a pulse sequence using a repetition of a pulse subsequence. The method further includes controlling the superconducting qubit by applying the pulse sequence to the superconducting qubit using a single flux quantum (“SFQ”) driver coupled thereto.
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公开(公告)号：US11694108B2
公开(公告)日：2023-07-04
申请号：US17168634
申请日：2021-02-05
申请人： Rigetti & Co, LLC
IPC分类号： H03K19/19 , G06N10/40 , G06N10/20 , H03K19/195
CPC分类号： G06N10/40 , G06N10/20 , H03K19/195
摘要： In a general aspect, a quantum streaming kernel processes a data stream. In some aspects, an input stream of data is converted to an output stream of data by repeatedly receiving new portions of the input stream; encoding each new portion into an internal quantum state of a quantum processor; measuring a first part of the internal quantum state while maintaining coherence of a second part of the internal quantum state; and producing the output stream of data based on the measurements. In some cases, a history of the input stream is preserved by the coherence of the internal quantum state, and the measurements contain information based on the history of the input stream.
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公开(公告)号：US12027361B2
公开(公告)日：2024-07-02
申请号：US17327199
申请日：2021-05-21
发明人： Dawson Yee , Craig S. Ranta , Cliff C. Lee , Douglas P. Kelley , Matthew David Turner , David B. Tuckerman
IPC分类号： H03K19/19 , H01L23/532 , H01L27/092 , H03K19/0185 , H03K19/195 , H10N60/12 , H10N60/80
CPC分类号： H01L23/53285 , H01L27/092 , H03K19/018521 , H03K19/195 , H10N60/12 , H10N60/805
摘要： High temperature superconductor (HTS)-based interconnect systems comprising a cable including HTS-based interconnects are described. Each of the HTS-based interconnects includes a first portion extending from a first end towards an intermediate portion and a second portion extending from the intermediate portion to a second end. Each of the HTS-based interconnects includes a substrate layer formed in the first portion, in the intermediate portion, and in the second portion, a high temperature superconductor layer formed in at least a sub-portion of the first portion, in the intermediate portion, and in the second portion, and a metallic layer formed in the first portion and in at least a sub-portion of the intermediate portion. The HTS-based interconnect system includes a thermal load management system configured to maintain the intermediate portion of each of the HTS-based interconnects at a predetermined temperature in a range between a temperature of 60 kelvin and 92 kelvin.
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4.发明授权公开(公告)号：US09641181B2
公开(公告)日：2017-05-02
申请号：US14983896
申请日：2015-12-30
IPC分类号： H03K19/19 , H03K19/195 , H01L51/00 , B82Y10/00 , H01L49/00 , G06N99/00 , H01L27/118 , B82Y40/00
CPC分类号： H03K19/195 , B82Y10/00 , B82Y40/00 , G06N99/007 , H01L27/11803 , H01L49/006 , H01L51/0098 , Y10S977/774 , Y10S977/89 , Y10S977/933
摘要： An electronic device for implementing digital functions comprising a first and a second electrode regions, separated by an interposing region comprising a dielectric region, is described. The first and the second electrode regions comprise at least one first electrode and at least one second electrode, respectively, configured to generate in the interposing region an electric field depending on an electric potential difference applied thereto. In the interposing region, a molecular layer is comprised, which is composed of a plurality of molecules, each being capable of assuming one or more states, in a controllable manner, depending on a sensed electric field. The dielectric region has a spatially variable dielectric profile, to determine a respective spatially variable field profile of the sensed electric field at the molecular layer.
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公开(公告)号：US12001923B2
公开(公告)日：2024-06-04
申请号：US18317674
申请日：2023-05-15
申请人： Rigetti & Co, LLC
IPC分类号： H03K19/19 , G06N10/20 , G06N10/40 , H03K19/195
CPC分类号： G06N10/40 , G06N10/20 , H03K19/195
摘要： In a general aspect, a quantum streaming kernel processes a data stream. In some aspects, an input stream of data is converted to an output stream of data by repeatedly receiving new portions of the input stream; encoding each new portion into an internal quantum state of a quantum processor; measuring a first part of the internal quantum state while maintaining coherence of a second part of the internal quantum state; and producing the output stream of data based on the measurements. In some cases, a history of the input stream is preserved by the coherence of the internal quantum state, and the measurements contain information based on the history of the input stream.
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公开(公告)号：US11601128B2
公开(公告)日：2023-03-07
申请号：US17744107
申请日：2022-05-13
发明人： David J. Reilly
IPC分类号： H03K19/19 , H03K19/195 , G06N10/00 , G11C11/56 , H01L27/11524 , H01L27/18
摘要： Systems and methods related to low power cryo-CMOS circuits with non-volatile threshold voltage offset compensation are provided. A system includes a plurality of devices configured to operate in a cryogenic environment, where a first distribution of a threshold voltage associated with the plurality of devices has a first value indicative of a measure of spread of the threshold voltage. The system further includes control logic, coupled to each of the plurality of devices, configured to modify a threshold voltage associated with each of the plurality of devices such that the first distribution is changed to a second distribution having a second value of the measure of spread of the threshold voltage representing a lower variation among threshold voltages of the plurality of devices.
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公开(公告)号：US10958274B2
公开(公告)日：2021-03-23
申请号：US16805047
申请日：2020-02-28
申请人： ANYON SYSTEMS INC.
IPC分类号： H03K19/19 , H03K19/195 , G11C11/44 , G06N10/00
摘要： There is described a microwave device and methods of operating same. The device comprises at least one superconducting qubit coupled to a transmission line defining a first port, and a filter. The filter comprises a first resonant element having a first resonance frequency f1, positioned along the transmission line between the first port and the qubit, and a second resonant element having a second resonance frequency f2 different from f1 and positioned along the transmission line between the first resonant element and the qubit.
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公开(公告)号：US11301770B2
公开(公告)日：2022-04-12
申请号：US15733868
申请日：2019-05-30
申请人： OTI LUMIONICS INC.
发明人： Scott N. Genin , Artur Izmaylov , Ilya Ryabinkin
IPC分类号： G06N10/00 , G06N3/04 , H03K19/19 , G06F30/20 , H03K19/195 , G06N5/00 , G06F119/06
摘要： A method of solving a problem can include providing a fermionic Hamiltonian, transformation of the fermionic Hamiltonian to qubit operators, transformation of the fermionic Hamiltonian in qubit operators to a mean-field Hamiltonian, and embedding the Hamiltonian onto a quantum computer. Such systems and methods may improve upon existing methods for solving electronic structure problems on a computer by adapting the problem to available hardware, reducing computational cost, and reducing the number of required qubits to solve electronic structure problems for larger number of atoms.
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9.发明授权公开(公告)号：US10666238B1
公开(公告)日：2020-05-26
申请号：US16666461
申请日：2019-10-29
申请人： Quantum Machines
发明人： Yonatan Cohen , Nissim Ofek , Itamar Sivan
IPC分类号： H03K19/19 , H03K3/38 , H03K19/195 , G06N10/00
摘要： A quantum controller comprises a first quantum control pulse generation circuit and a second quantum control pulse generation circuit. The first quantum control pulse generation circuit and a second quantum control pulse generation circuit are operable to operate asynchronously during some time intervals of a quantum algorithm and synchronously during other time intervals of the quantum algorithm.
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公开(公告)号：US09692423B2
公开(公告)日：2017-06-27
申请号：US14584659
申请日：2014-12-29
申请人： Robert Francis McDermott, III , Britton Louis Thomas Plourde , Maxim George Vavilov , Frank Karsten Wilhelm-Mauch , Luke Colin Gene Govia , Emily Joy Pritchett
发明人： Robert Francis McDermott, III , Britton Louis Thomas Plourde , Maxim George Vavilov , Frank Karsten Wilhelm-Mauch , Luke Colin Gene Govia , Emily Joy Pritchett
IPC分类号： H03K19/19 , H03K19/195 , B82Y10/00 , G06N99/00
CPC分类号： H03K19/1954 , B82Y10/00 , G06N99/002 , H03K19/19 , H03K19/195 , H03K19/1958
摘要： A system for quantum computation and a readout method using the same are provided. In some aspects, the system includes at least one qubit circuit coupled to a resonant cavity, wherein each of the at least one qubit circuit is described by multiple quantum states, and a controller configured to provide microwave irradiation to the resonant cavity such that a quantum state information of the at least one qubit circuit is transferred to a resonant cavity occupation. The system also includes a readout circuit, coupled to the resonant cavity, configured to receive signals corresponding to the resonant cavity occupation, and generate an output indicative of the quantum states of the at least one qubit circuit. Optionally, the system further includes at least one single flux quantum (“SFQ”) circuit coupled to the readout circuit and configured to receive the output therefrom.
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