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    Majorana fermion quantum computing devices fabricated with ion implant methods
    1.
    发明专利
    Majorana fermion quantum computing devices fabricated with ion implant methods 未知

    公开(公告)号：AU2020385351A1

    公开(公告)日：2022-04-21

    申请号：AU2020385351

    申请日：2020-11-10

    Applicant: IBM

    Inventor： HOLMES STEVEN ,  SADANA DEVENDRA ,  HART SEAN ,  BEDELL STEPHEN ,  LI NING ,  GUMANN PATRYK

    IPC: H01L39/02 ,  B82Y10/00 ,  G06N10/00 ,  H01L39/22 ,  H01L39/24

    Abstract: A quantum computing device is fabricated by forming, on a superconductor layer (410), a first resist pattern defining a device region and a sensing region within the device region. The superconductor layer within the sensing region is removed, exposing a region of an underlying semiconductor layer (340) outside the device region. The exposed region of the semiconductor layer is implanted, forming an isolation region (240) surrounding the device region. Using an etching process subsequent to the implanting, the sensing region and a portion of the device region of the superconductor layer adjacent to the isolation region are exposed. By depositing a first metal layer within the sensing region, a tunnel junction gate (204) is formed. A sensing region gate (202) is formed by coupling the semiconductor layer with a second metal layer. A chemical potential gate (208, 210) is also formed. A nanorod contact (206, 212) using the second metal within the portion of the device region outside the sensing region is formed.

    Gate voltage-tunable electron system integrated with superconducting resonator for quantum computing device
    4.
    发明专利
    Gate voltage-tunable electron system integrated with superconducting resonator for quantum computing device 未知

    公开(公告)号：AU2020250769A1

    公开(公告)日：2021-09-30

    申请号：AU2020250769

    申请日：2020-03-18

    Applicant: IBM

    Inventor： HART SEAN ,  GAMBETTA JAY MICHAEL ,  GUMANN PATRYK

    IPC: G06N10/00 ,  H10N60/01 ,  H10N60/80 ,  H10N69/00

    Abstract: A superconducting coupling device includes a resonator structure. The resonator structure has a first end configured to be coupled to a first device and a second end configured to be coupled to a second device. The device further includes an electron system coupled to the resonator structure, and a gate positioned proximal to a portion of the electron system. The electron system and the gate are configured to interrupt the resonator structure at one or more predetermined locations forming a switch. The gate is configured to receive a gate voltage and vary an inductance of the electron system based upon the gate voltage. The varying of the inductance induces the resonator structure to vary a strength of coupling between the first device and the second device.

    CRYOSTAT WITH A THERMAL SHIELD
    5.
    发明专利
    CRYOSTAT WITH A THERMAL SHIELD 未知

    公开(公告)号：AU2021417883A9

    公开(公告)日：2025-03-13

    申请号：AU2021417883

    申请日：2021-12-30

    Applicant: IBM

    Inventor： GUMANN PATRYK ,  GRENDANIN VALERIO ,  HART SEAN ,  MCKAY DAVID ,  CHOW JERRY ,  ZARSKY DAVID ,  BAUER GILBERT

    IPC: F25D19/00 ,  F25B9/10 ,  F25B9/12 ,  F25B9/14

    Abstract: A cryostat (100), comprising: a thermal shield (210) extending between a thermal stage (141) and a base structure (160) coupled to a bottom plate (116) of an outer vacuum chamber (110), the thermal stage (141) coupled to a top plate (114) of the outer vacuum chamber (110), the thermal shield (210) providing access to a sample mounting surface (430) encompassed within the thermal shield (210) from a region external to the outer vacuum chamber (110) via the top and bottom plates (114, 116) of the outer vacuum chamber (110).

    MULTIPLE CRYOGENIC SYSTEMS SECTIONED WITHIN A COMMON VACUUM SPACE
    6.
    发明专利
    MULTIPLE CRYOGENIC SYSTEMS SECTIONED WITHIN A COMMON VACUUM SPACE 未知

    公开(公告)号：AU2022205759B2

    公开(公告)日：2025-01-30

    申请号：AU2022205759

    申请日：2022-01-05

    Applicant: IBM

    Inventor： CORCOLES-GONZALEZ ANTONIO ,  GUMANN PATRYK ,  CHOW JERRY

    IPC: F25B9/10 ,  F25B9/12 ,  F25D19/00 ,  F28D15/02

    Abstract: Techniques facilitating multiple cryogenic systems sectioned within a common vacuum space are provided. In one example, a cryostat can comprise a plurality of thermal stages and a thermal switch. The plurality of thermal stages can intervene between a 4-Kelvin (K) stage and a Cold Plate stage. The plurality of thermal stages can include a Still stage and an intermediate thermal stage that can be directly coupled mechanically to the Still stage via a support rod. The thermal switch can be coupled to the intermediate thermal stage and an adjacent thermal stage. The thermal switch can facilitate modifying a thermal profile of the cryostat by providing a switchable thermal path between the intermediate thermal stage and the adjacent thermal stage.

    Interpositor supercondutor para transdução ótica de informação quântica
    8.
    发明专利
    Interpositor supercondutor para transdução ótica de informação quântica 未知

    公开(公告)号：BR112021026226A2

    公开(公告)日：2022-02-15

    申请号：BR112021026226

    申请日：2020-06-23

    Applicant: IBM

    Inventor： DANIELA FLORENTINA BOGORIN ,  ORCUTT JASON ,  NICHOLAS TORLEIV BRONN ,  GUMANN PATRYK ,  SALVATORE BERNARDO OLIVADESE ,  HART SEAN

    IPC: G06F1/20 ,  G06N10/00

    Abstract: interpositor supercondutor para transdução ótica de informação quântica. um sistema para transdução ótica de informação quântica inclui um chip qubit incluindo uma pluralidade de qubits de dados configurada para operar em frequências de micro-ondas, e um chip de transdução separado do chip qubit, o chip de transdução incluindo um transdutor de frequência de micro-ondas para ótica. o sistema inclui um interpositor acoplado ao chip qubit e o chip de transdução, o interpositor incluindo um material dielétrico incluindo uma pluralidade de guias de onda de micro-ondas supercondutores formados na mesma. a pluralidade de guias de onda de micro-ondas supercondutores é configurada para transmitir informação quântica a partir da pluralidade de qubits de dados para o transdutor de frequência de micro- onda para ótica no chip de transdução e o transdutor de frequência de micro-onda para ótica é configurado para transduzir a informação quântica a partir das frequências de micro-ondas em frequências óticas.

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