公开(公告)号：US20240305280A1

公开(公告)日：2024-09-12

申请号：US18668918

申请日：2024-05-20

申请人： Quantum Machines

发明人： Yonatan Cohen ,  Nissim Ofek ,  Itamar Sivan

IPC分类号： H03K3/38 ,  G06N10/00 ,  H03K19/195

CPC分类号： H03K3/38 ,  G06N10/00 ,  H03K19/195

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.

公开(公告)号：US12021527B2

公开(公告)日：2024-06-25

申请号：US17170887

申请日：2021-02-08

申请人： SeeQC, Inc.

发明人： Oleg A. Mukhanov ,  Alexander F. Kirichenko ,  Dmitri Kirichenko

IPC分类号： H03K19/195 ,  H01B12/02 ,  H01B12/16 ,  H03K3/38 ,  H10N60/10 ,  H10N60/12 ,  H10N69/00

CPC分类号： H03K19/195 ,  H01B12/02 ,  H01B12/16 ,  H03K3/38 ,  H10N60/10 ,  H10N60/12 ,  H10N69/00 ,  Y10T29/49124

摘要： A superconducting integrated circuit, comprising a plurality of superconducting circuit elements, each having a variation in operating voltage over time; a common power line; and a plurality of bias circuits, each connected to the common power line, and to a respective superconducting circuit element, wherein each respective bias circuit is superconducting during at least one time portion of the operation of a respective superconducting circuit element, and is configured to supply the variation in operating voltage over time to the respective superconducting circuit element.

公开(公告)号：US12020116B2

公开(公告)日：2024-06-25

申请号：US17054284

申请日：2019-05-06

申请人： D-WAVE SYSTEMS INC.

发明人： Emile M. Hoskinson ,  Reuble Mathew

IPC分类号： G06N10/00 ,  B82Y10/00 ,  G06N3/044 ,  G06N10/40 ,  G06N10/60 ,  H03K3/30 ,  H03K3/38 ,  H03M1/66

CPC分类号： G06N10/00 ,  G06N3/044 ,  H03M1/66 ,  B82Y10/00 ,  G06N10/40 ,  G06N10/60 ,  H03K3/30 ,  H03K3/38

摘要： Devices, systems, and methods that include a qubit coupled to a projective-source digital-to-analog converter (PSDAC) for projective measurement of the qubit. A change in flux state of the PSDAC from a first flux state to a second flux state generates a fast-flux step or fast-step waveform that can be applied to the qubit to perform projective measurement of the qubit. For a quantum processor that includes a set of qubits wherein each qubit is coupled to a respective PSDAC, a shared trigger line can activate each PSDAC to generate a respective fast-flux step or fast-step waveform. Synchronization devices can synchronize the fast-flux steps or fast-step waveforms, allowing for projective readout of the set of qubits.

公开(公告)号：US11967957B2

公开(公告)日：2024-04-23

申请号：US18101763

申请日：2023-01-26

申请人： Quantum Machines

发明人： Yonatan Cohen ,  Nissim Ofek ,  Itamar Sivan ,  Tal Shani

IPC分类号： H03K3/38 ,  G06N3/04 ,  G06N10/00 ,  H03K19/195

CPC分类号： H03K3/38 ,  G06N3/04 ,  G06N10/00 ,  H03K19/195

摘要： A system comprises pulse program compiler circuitry operable to analyze a pulse program that includes a pulse operation statement, and to generate, based on the pulse program, machine code that, if loaded into a pulse generation and measurement circuit, configures the pulse generation and measurement circuit to generate one or more pulses and/or process one or more received pulses. The pulse operation statement may specify a first pulse to be generated, and a target of the first pulse. The pulse operation statement may specify parameters to be used for processing of a return signal resulting from transmission of the first pulse. The pulse operation statement may specify an expression to be used for processing of the first pulse by the pulse generation and measurement circuit before the pulse generation and measurement circuit sends the first pulse to the target.

公开(公告)号：US20240130249A1

公开(公告)日：2024-04-18

申请号：US18365936

申请日：2023-08-04

申请人： Fu-Chang HSU ,  Kevin HSU

发明人： Fu-Chang HSU ,  Kevin HSU

IPC分类号： H10N60/10 ,  G06N10/00 ,  H03K3/38 ,  H10N69/00

CPC分类号： H10N60/11 ,  G06N10/00 ,  H03K3/38 ,  H10N60/128 ,  H10N69/00

摘要： A quantum bit array is disclosed. In an embodiment, the quantum bit array includes a control gate coupled to a qubit and at least one pass gate coupled between the qubit and an adjacent qubit to control operation of the qubit of the quantum bit array, a bit line, and a first transistor channel that connects the bit line to the control gate. The array further comprises at least one word line coupled to the first transistor channel. The at least one word line selectively controls charge flow through the first transistor channel. The array further comprises a capacitor coupled to selectively store charge in the first transistor channel.

公开(公告)号：US20240063779A1

公开(公告)日：2024-02-22

申请号：US18364848

申请日：2023-08-03

申请人： Quantum Machines

发明人： Yonatan Cohen ,  Nissim Ofek ,  Itamar Sivan

IPC分类号： H03K3/38 ,  G06N10/00 ,  H03K19/195 ,  G06F13/36 ,  G06F15/82 ,  G06F15/80

CPC分类号： H03K3/38 ,  G06N10/00 ,  H03K19/195 ,  G06F13/36 ,  G06F15/82 ,  G06F15/80

摘要： A controller comprises a pulse generation circuit, output management circuitry, and a plurality of outputs configured to connect the controller to a plurality of controlled elements. The pulse generation circuit is configured to generate quantum control pulses. For each control pulse of a plurality of control pulses generated by the pulse generation circuit, the output management circuitry is configured to determine to which of the plurality of outputs to route the control pulse such that a first of the plurality of control pulses is routed to a first of the plurality of controlled elements and a second of the plurality of control pulses is routed to a second of the plurality of control elements.

公开(公告)号：US11822163B2

公开(公告)日：2023-11-21

申请号：US16446235

申请日：2019-06-19

申请人： equal1.labs Inc.

发明人： Dirk Robert Walter Leipold ,  George Adrian Maxim ,  Michael Albert Asker

IPC分类号： G06N10/00 ,  G06N10/40 ,  G06N10/70 ,  G02F1/017 ,  B82Y10/00 ,  H01L29/12 ,  H01L29/66 ,  H03K19/195 ,  B82Y15/00 ,  G06F1/20 ,  G06F11/07 ,  G06F15/16 ,  G06N99/00 ,  G11C19/32 ,  H01L21/02 ,  H01L27/088 ,  H01L29/15 ,  H01L29/417 ,  H01L33/04 ,  H03M1/34 ,  H03M1/66 ,  H03K3/38 ,  H03M13/15 ,  H10N60/10 ,  H10N69/00

CPC分类号： G02F1/01725 ,  B82Y10/00 ,  B82Y15/00 ,  G06F1/20 ,  G06F11/0724 ,  G06F11/0751 ,  G06F11/0793 ,  G06F15/16 ,  G06N10/00 ,  G06N10/70 ,  G06N99/00 ,  G11C19/32 ,  H01L21/02694 ,  H01L27/0883 ,  H01L29/122 ,  H01L29/157 ,  H01L29/41791 ,  H01L29/66977 ,  H01L29/66984 ,  H01L33/04 ,  H03K3/38 ,  H03K19/195 ,  H03M1/34 ,  H03M1/66 ,  H03M13/1575 ,  H10N60/11 ,  H10N60/128 ,  H10N69/00 ,  G02F1/01791

摘要： A novel and useful quantum computing machine includes classic computing and quantum computing cores. A programmable pattern generator executes instructions that control the quantum core. A pulse generator generates the control signals input to the quantum core to perform quantum operations. A partial readout of the quantum state is re-injected into the quantum core to extend decoherence time. Access gates control movement of quantum particles in the quantum core. Errors are corrected from the readout before being re-injected into the quantum core. Internal and external calibration loops calculate error syndromes and calibrate control pulses input to the quantum core. Control of the quantum core is provided from an external support unit via the pattern generator or retrieved from classic memory where sequences of commands are stored in memory. A cryostat unit functions to cool the quantum computing core to approximately 4 Kelvin.

公开(公告)号：US20230180631A1

公开(公告)日：2023-06-08

申请号：US17541364

申请日：2021-12-03

申请人： International Business Machines Corporation

发明人： Aaron Finck

IPC分类号： H01L39/22 ,  H03K3/38 ,  G06N10/20

CPC分类号： H01L39/223 ,  H03K3/38 ,  G06N10/20

摘要： Techniques regarding a quantum entangling gate between multi-mode superconducting qubits are provided. For example, one or more embodiments described herein can comprise an apparatus, which can comprise a first multi-mode superconducting qubit coupled to a second multi-mode superconducting qubit via a transmon qubit.

公开(公告)号：US11671082B2

公开(公告)日：2023-06-06

申请号：US17388198

申请日：2021-07-29

申请人： Quantum Machines

发明人： Yonatan Cohen ,  Nissim Ofek ,  Itamar Sivan

IPC分类号： G06N99/00 ,  H03K3/38 ,  G06N10/00 ,  H03K19/195

CPC分类号： H03K3/38 ,  G06N10/00 ,  H03K19/195

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.

公开(公告)号：US11657315B2

公开(公告)日：2023-05-23

申请号：US17339276

申请日：2021-06-04

申请人： Google LLC

发明人： Yuezhen Niu ,  Hartmut Neven ,  Vadim Smelyanskiy ,  Sergio Boixo Castrillo

IPC分类号： G06N10/00 ,  H03K3/38

CPC分类号： G06N10/00 ,  H03K3/38

摘要： Methods, systems, and apparatus for implementing a unitary quantum gate on one or more qubits. In one aspect, a method includes the actions designing a control pulse for the unitary quantum gate, comprising: defining a universal quantum control cost function, wherein the control cost function comprises a qubit leakage penalty term representing i) coherent qubit leakage, and ii) incoherent qubit leakage across all frequency components during a time dependent Hamiltonian evolution that realizes the unitary quantum gate; adjusting parameters of the time dependent Hamiltonian evolution to vary a control cost according to the control cost function such that leakage errors are reduced; generating the control pulse using the adjusted parameters; and applying the control pulse to the one or more qubits to implement the unitary quantum gate.