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公开(公告)号：US12119820B2
公开(公告)日：2024-10-15
申请号：US18387402
申请日：2023-11-06
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Qiaodan Jin Stone
IPC: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84
CPC classification number: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84 , G01J2001/442
Abstract: A programmable circuit includes a superconducting multi-dimensional array. The programmable circuit further includes a plurality of photon detectors coupled to respective portions of the superconducting multi-dimensional array, each photon detector configured to selectively provide input to a corresponding respective portion sufficient to transition the corresponding respective portion from a superconducting state to a non-superconducting state. The programmable circuit also includes one or more electrical terminals coupled to respective second portions of the superconducting multi-dimensional array.
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公开(公告)号：US20240339978A1
公开(公告)日：2024-10-10
申请号：US18745713
申请日：2024-06-17
Applicant: PSIQUANTUM CORP.
Inventor： Faraz Najafi , Syrus Ziai , Qiaodan Jin Stone
Abstract: An example single photon detector includes a thin sheet of superconducting material connected to a current source to receive a small current generated from detection one or more photons, the thin sheet of superconducting material connected to a ground, the thin sheet of superconducting material further connected to an amplifying current source to receive a larger current that is larger than the small current. The example detector further includes an asymmetric arrangement of nanowires, the asymmetric arrangement of nanowires comprising three or more differently sized nanowires that are arranged in the thin sheet in a sequence from smallest to largest such that the asymmetric arrangement of nanowires are triggered in the sequence in response to the small current. The example detector also includes an output to output current from the amplifying current source in response to the asymmetric arrangement of nanowires being triggered.
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公开(公告)号：US20240260484A1
公开(公告)日：2024-08-01
申请号：US18632077
申请日：2024-04-10
Applicant: PsiQuantum Corp. , Government of the United States of America, as Represented by the Secretary of Commerce
Inventor： Faraz Najafi , Qiaodan Jin Stone , Adam Nykoruk McDaughan
Abstract: An example electric circuit includes a superconductor component having a first terminal at a first end and a second terminal at a second end. The superconductor component includes a first portion coupled to the first terminal, a second portion coupled to the second terminal, and a third portion coupling the first portion and the second portion. The third portion has a curved shape such that the first portion of the superconductor component is proximate to, and thermally coupled to, the second portion of the superconductor component. The example electric circuit further includes a coupling component coupled to the third portion of the superconductor component, and a gate component configured to generate a resistive heat that exceeds a superconducting threshold temperature of the superconductor component, where the gate component is separated from the superconductor component by the coupling component.
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公开(公告)号：US12015383B2
公开(公告)日：2024-06-18
申请号：US17150889
申请日：2021-01-15
Applicant: PSIQUANTUM CORP.
Inventor： Faraz Najafi , Syrus Ziai , Qiaodan Jin Stone
Abstract: A system includes a plurality of superconducting wires connected in parallel with one another. The plurality of superconducting wires includes a first superconducting wire and a second superconducting wire. The plurality of superconducting wires are configured to, while receiving a bias current provided to the parallel combination of the plurality of superconducting wires, operate in a superconducting state in the absence of a trigger current. The first superconducting wire is configured to, while receiving the bias current, transition to a non-superconducting state in response to receiving the trigger current. The second superconducting wire is configured to, while receiving the bias current, transition to a non-superconducting state in response to the first superconducting wire transitioning to the non-superconducting state.
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公开(公告)号：US11980105B2
公开(公告)日：2024-05-07
申请号：US17240965
申请日：2021-04-26
Applicant: PsiQuantum Corp. , Government of the United States of America, as Represented by the Secretary of Commerce
Inventor： Faraz Najafi , Qiaodan Jin Stone , Adam Nykoruk McCaughan
Abstract: The various embodiments described herein include methods, devices, and systems for operating superconducting circuits. In one aspect, an electric circuit includes: (1) a superconductor component having a first terminal at a first end and a second terminal at a second end; (2) a gate component thermally-coupled to the superconductor component at a first location between the first terminal and the second terminal, where the gate component is thermally-coupled via a first section of the gate component; and where the gate component has a smallest width at the first section so as to focus resistive heating toward the superconductor component.
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Patent Agency Ranking
公开(公告)号：US20230148267A1
公开(公告)日：2023-05-11
申请号：US17838917
申请日：2022-06-13
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Qiaodan Jin Stone
IPC: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84
CPC classification number: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84 , G01J2001/442
Abstract: A programmable circuit includes a superconducting component arranged in a multi-dimensional array of alternating narrow and wide portions. The programmable circuit further includes a plurality of heat sources, each heat source configured to selectively provide heat to a respective narrow portion sufficient to transition the respective narrow portion from a superconducting state to a non-superconducting state. The programmable circuit further includes a plurality of electrical terminals, each electrical terminal coupled to a respective wide portion of the multi-dimensional array.
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公开(公告)号：US20200099354A1
公开(公告)日：2020-03-26
申请号：US16553068
申请日：2019-08-27
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Syrus Ziai , Qiaodan Jin Stone
Abstract: A system includes a first superconducting wire and a second superconducting wire connected in parallel. The system includes a first current source coupled to the first superconducting wire and configured to supply a first current in response to a trigger event. The system includes a second current source coupled in series with the parallel combination of the first superconducting wire and the second superconducting wire and configured to supply a second current. The superconducting wires are configured to, while receiving the second current, operate in a superconducting state in the absence of the first current. The first superconducting wire is configured to, while receiving the second current, transition to a non-superconducting state in response to the first current. The second superconducting wire is configured to, while receiving the second current, transition to a non-superconducting state in response to the first superconducting wire transitioning to the non-superconducting state.
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公开(公告)号：US12199604B1
公开(公告)日：2025-01-14
申请号：US18099861
申请日：2023-01-20
Applicant: PsiQuantum Corp
Inventor： Faraz Najafi , Qiaodan Jin Stone
Abstract: The various embodiments described herein include methods, devices, and circuits for reducing switch transition time of superconductor switches. In some embodiments, an electrical circuit includes: (i) an input component configured to generate heat in response to an electrical input; and (ii) a first superconducting component thermally-coupled to the input component. The electrical circuit is configured such that, in the absence of the electrical input, at least a portion of the first superconducting component is maintained in a non-superconducting state in the absence of the electrical input; and, in response to the electrical input, the first superconducting component transitions to a superconducting state.
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公开(公告)号：US12107375B2
公开(公告)日：2024-10-01
申请号：US17461892
申请日：2021-08-30
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Qiaodan Jin Stone
CPC classification number: H01R4/68 , G01J5/00 , H01B12/14 , H03K19/195 , H10N60/30 , H10N60/85 , H10N69/00
Abstract: An electric circuit includes a first superconducting component, a second superconducting component, a first electrically-insulating component that thermally couples the first superconducting component and the second superconducting component such that heat produced in response to the first superconducting component transitioning to a non-superconducting state is transferred through the first electrically-insulating component to the second superconducting component, and a photon detector coupled to the first superconducting component. The photon detector is configured to output a first current to the first superconducting component upon detection of a threshold number of photons. The electric circuit further includes an output component coupled to the second superconducting component. The output component is configured to be responsive to a voltage drop across the second superconducting component.
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公开(公告)号：US11783967B1
公开(公告)日：2023-10-10
申请号：US17061448
申请日：2020-10-01
Applicant: PsiQuantum Corp.
Inventor： Qiaodan Jin Stone , Gary Gibson
Abstract: The present disclosure provides a circuit that includes a first component and a plurality of superconducting wires thermally-coupled to the first component. The superconducting wires of the plurality of superconducting wires are arranged and configured such that a threshold superconducting current for each superconducting wire is dependent on an amount of heat received from the first component. The circuit further includes a dielectric material separating the plurality of superconducting wires from one another. A superconducting wire nearest the first component among the plurality of superconducting wires is more than a phonon mean free path of the dielectric material from the first component. The circuit further includes control circuitry electrically-coupled to the plurality of superconducting wires and configured to provide current to each of the plurality of superconducting wires.
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