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公开(公告)号：US20230155593A1
公开(公告)日：2023-05-18
申请号：US17525899
申请日：2021-11-13
发明人： Baleegh Abdo , Jerry M. Chow
IPC分类号： H03K19/195 , H01L39/22 , H01P1/38 , H01P7/08 , G06N10/00
CPC分类号： H03K19/195 , H01L39/223 , H01P1/38 , H01P7/082 , G06N10/00
摘要： A quantum circuit includes a quantum signal unit. There is a first quantum chip comprising a plurality of qubit devices and bi-directionally coupled to the quantum signal unit. A first quantum entangling unit is bi-directionally coupled to the quantum signal unit and configured to generate an entanglement between a first and a second qubit device on the first quantum chip via the quantum signal unit.
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公开(公告)号：US11552239B2
公开(公告)日：2023-01-10
申请号：US16698216
申请日：2019-11-27
发明人： Baleegh Abdo
摘要： A superconducting quantum mechanical device includes first, second, third and fourth Josephson junctions connected in a bridge circuit having first, second and third resonance eigenmodes. The device also includes first and second capacitor pads. The first and second capacitor pads and the bridge circuit form a superconducting qubit having a resonance frequency corresponding to the first resonance eigenmode. The device further includes first and second resonator sections. The first and second resonator sections and the bridge circuit form a resonator having a resonance frequency corresponding to the second resonance eigenmode. The device also includes a source of magnetic flux arranged proximate the bridge circuit. The source of magnetic flux is configured to provide, during operation, a magnetic flux through the bridge circuit to cause coupling between the first, second and third resonance eigenmodes when the third resonance eigenmode is excited.
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公开(公告)号：US11374537B2
公开(公告)日：2022-06-28
申请号：US17157004
申请日：2021-01-25
发明人： Baleegh Abdo
IPC分类号： H03D7/00
摘要： A technique relates to a pulse shaping of microwave signals. A nondegenerate mixing device receives signals and a time-varying magnetic flux via input ports. The nondegenerate mixing device uses the signals and the time-varying magnetic flux to generate an output signal on an output port, the output signal having a waveform profile set by the time-varying magnetic flux.
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4.发明授权公开(公告)号：US11317519B2
公开(公告)日：2022-04-26
申请号：US16160347
申请日：2018-10-15
发明人： Baleegh Abdo , Markus Brink
IPC分类号： H05K3/46 , H01P5/12 , H01P11/00 , H03H3/00 , H05K3/06 , H03H7/01 , H01P1/365 , H03H7/46 , H01P1/203
摘要： Fabrication of superconducting devices that combine or separate direct currents and microwave signals is provided. A method can comprise forming a direct current circuit that supports a direct current, a microwave circuit that supports a microwave signal, and a common circuit that supports the direct current and the microwave signal. The method can also comprise operatively coupling a first end of the direct current circuit and a first end of the microwave circuit to a first end of the common circuit. The direct current circuit can comprise a bandstop circuit and the microwave circuit can comprise a capacitor. Alternatively, the direct current circuit can comprise a bandstop circuit and the microwave circuit can comprise a bandpass circuit. Alternatively, the microwave circuit can comprise a capacitor and the direct current circuit can comprise one or more quarter-wavelength transmission lines.
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5.发明授权公开(公告)号：US11139903B2
公开(公告)日：2021-10-05
申请号：US16734453
申请日：2020-01-06
发明人： Baleegh Abdo
摘要： A technique relates to a superconducting microwave combiner. A first filter through a last filter connects to a first input through a last input, respectively. The first filter through the last filter each has a first passband through a last passband, respectively, such that the first passband through the last passband are each different. A common output is connected to the first input through the last input via the first filter through the last filter.
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公开(公告)号：US20210226597A1
公开(公告)日：2021-07-22
申请号：US16749949
申请日：2020-01-22
发明人： Baleegh Abdo
摘要： A bandpass parametric amplifier circuit includes a plurality of unit cells. At least one unit cell includes a first inductor having a first node coupled to a center conductor and a second node coupled to ground. There is a first capacitor having a first node coupled to the center conductor and a second node coupled to ground. There is a second inductor having a first node coupled to the center conductor. A second capacitor has a first node coupled to a second node of the second inductor. The second capacitor and the second inductor are in series with the center conductor.
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公开(公告)号：US10886586B2
公开(公告)日：2021-01-05
申请号：US16114890
申请日：2018-08-28
发明人： Baleegh Abdo , Patryk Gumann
摘要： A hybrid microwave attenuator is constructed by forming a circuit and a housing. The circuit has two ports, a resistive component configured to attenuate some frequencies in an input signal (transmitted signal), and a dispersive component configured to attenuate some frequencies within a frequency range. The resistive component and the dispersive component are arranged in a series configuration relative to one another between the two ports of the circuit. The housing includes a closable structure in which the circuit is positioned, the structure being formed of a material that exhibits at least a threshold level of thermal conductivity, where the threshold level of thermal conductivity is achieved at a cryogenic temperature range in which a quantum computing circuit operates. The housing further includes a pair of microwave connectors, the pair of connectors being thermally coupled to the housing.
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公开(公告)号：US10885460B2
公开(公告)日：2021-01-05
申请号：US16114793
申请日：2018-08-28
发明人： Baleegh Abdo
摘要： A resistive component in a hybrid microwave attenuator circuit is configured to attenuate a plurality of frequencies in an input signal. The hybrid microwave attenuator circuit is further configured with a dispersive component to attenuate a second plurality of frequencies within a frequency range by reflecting off portions of the input signal at those frequencies that are within the frequency range. The resistive component and the dispersive component are arranged in a series configuration relative to one another in the hybrid microwave attenuator circuit.
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9.发明申请公开(公告)号：US20200333263A1
公开(公告)日：2020-10-22
申请号：US16387789
申请日：2019-04-18
发明人： Baleegh Abdo
摘要： Techniques that facilitate a measurement scheme for superconducting qubits using low-frequency microwave signals within a dilution refrigerator are provided. In one example, a cryogenic microwave system for measuring superconducting qubits using microwave signals includes a dilution refrigerator system for a quantum processor. The dilution refrigerator system converts a microwave signal associated with qubit information into a reduced-frequency microwave signal based on a Josephson-mixer circuit located within the dilution refrigerator system. The reduced-frequency microwave signal includes a frequency below a qubit frequency and a readout resonator frequency associated with the quantum processor.
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10.发明授权公开(公告)号：US10720887B2
公开(公告)日：2020-07-21
申请号：US16358277
申请日：2019-03-19
发明人： Baleegh Abdo
IPC分类号： G06N10/00 , G06N99/00 , H01L39/02 , H03D7/00 , H03H9/25 , H03H9/24 , H01L39/22 , H01L39/12 , H03F19/00 , H03H9/02
摘要： Superconducting device applications implemented with a surface acoustic wave resonator and a superconducting microwave resonator coupled to a Josephson ring modulator are provided. A method can comprise receiving, by a microwave Josephson mixer, and from a superconducting surface acoustic wave resonator of a superconducting device, a surface acoustic wave signal that comprises one or more phonons that resonate at a first frequency. The method can also comprise receiving, by the microwave Josephson mixer and from a superconducting microwave resonator of the superconducting device, a microwave signal that comprises one or more photons that can resonate at a second frequency. Further, the method can also comprise mixing, by the microwave Josephson mixer, the surface acoustic wave signal and the microwave signal based on a microwave control signal received from a microwave source operatively coupled to the microwave Josephson mixer.
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