公开(公告)号：US20200272927A1

公开(公告)日：2020-08-27

申请号：US16281657

申请日：2019-02-21

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Nicholas T. Bronn ,  Patryk Gumann ,  Sean Hart ,  Salvatore B. Olivadese

IPC: G06N10/00 ,  H01P5/08 ,  H01P3/06

Abstract: A quantum computer includes a refrigeration system under vacuum including a containment vessel, a qubit chip contained within a refrigerated vacuum environment defined by the containment vessel. The quantum computer further includes a plurality of interior electromagnetic waveguides and a plurality of exterior electromagnetic waveguides. The quantum computer further includes a hermetic connector assembly operatively connecting the interior electromagnetic waveguides to the exterior electromagnetic waveguides while maintaining the refrigerated vacuum environment. The hermetic connector assembly includes an exterior multi-waveguide connector, an interior multi-waveguide connector, and a dielectric plate arranged between and hermetically sealed with the exterior multi-waveguide connector and the interior multi-waveguide connector. The dielectric plate permits electromagnetic energy when carried by the interior and exterior pluralities of electromagnetic waveguides to pass therethrough.

公开(公告)号：US11945104B2

公开(公告)日：2024-04-02

申请号：US17144767

申请日：2021-01-08

Applicant: International Business Machines Corporation

Inventor： Patryk Gumann ,  Sean Hart ,  Valerio A. Grendanin ,  Raymond A. Watters ,  David Zarsky ,  Gilbert Bauer

IPC: B25J18/00 ,  F16M11/10

CPC classification number: B25J18/007 ,  F16M11/10

Abstract: Techniques facilitating increased operational reliability for jib cranes are provided. In one example, a jib crane can comprise a mast, a shaft mechanism, and a rod. The mast can extend vertically from a base structure. The shaft mechanism can be disposed within the mast. The rod can be coupled to a boom arm and can be disposed within the shaft mechanism. Rotation of the rod can facilitate continuous rotation of the boom arm about a longitudinal axis of the rod with respect to the base structure.

公开(公告)号：US11889770B2

公开(公告)日：2024-01-30

申请号：US16850862

申请日：2020-04-16

Applicant: International Business Machines Corporation

Inventor： Salvatore Bernardo Olivadese ,  Sarunya Bangsaruntip ,  Daniela Florentina Bogorin ,  Nicholas Torleiv Bronn ,  Sean Hart ,  Patryk Gumann

IPC: H01L39/02 ,  H10N60/80 ,  G06N10/00 ,  H01P3/02 ,  H10N60/01 ,  G06N10/40 ,  H01P11/00 ,  H01P3/00 ,  B82Y10/00

CPC classification number: H10N60/80 ,  G06N10/00 ,  H01P3/026 ,  H10N60/01 ,  B82Y10/00 ,  G06N10/40 ,  H01P3/003 ,  H01P11/003

Abstract: Techniques for designing and fabricating quantum circuitry, including a coplanar waveguide (CPW), for quantum applications are presented. With regard to a CPW, a central conductor and two return conductor lines can be formed on a dielectric substrate, with one return conductor line on each side of the central conductor and separated from it by a space. The central conductor can have bridge portions that can be raised a desired distance above the substrate and base conductor portions situated between the bridge portions and in contact with the surface of the substrate; and/or portions of the substrate underneath the bridge portions of the central conductor can be removed such that the bridge portions, whether raised or unraised, can be the desired distance above the surface of the remaining substrate, and the base conductor portions can be in contact with other portions of the surface of the substrate that were not removed.

公开(公告)号：US11879789B2

公开(公告)日：2024-01-23

申请号：US16460572

申请日：2019-07-02

Applicant: International Business Machines Corporation

Inventor： Salvatore Bernardo Olivadese ,  Daniela Florentina Bogorin ,  Nicholas Torleiv Bronn ,  Sean Hart ,  Patryk Gumann

IPC: G01K7/00 ,  G06N10/00 ,  G06F30/367 ,  H01P7/08 ,  H01P7/10 ,  G06F119/08

CPC classification number: G01K7/006 ,  G06F30/367 ,  G06N10/00 ,  H01P7/082 ,  H01P7/10 ,  G06F2119/08

Abstract: Techniques regarding determining the temperature of one or more quantum computing devices are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a temperature component that can determine a temperature of a superconducting resonator based on a frequency shift exhibited by the superconducting resonator due to a change in kinetic inductance with a change in temperature.

公开(公告)号：US11683996B2

公开(公告)日：2023-06-20

申请号：US17061177

申请日：2020-10-01

Applicant: International Business Machines Corporation

Inventor： Sean Hart ,  Jay M. Gambetta ,  Patryk Gumann

IPC: H01L29/43 ,  H01L39/22 ,  H01L29/15 ,  H01L29/16 ,  H01L29/165 ,  H01L29/205 ,  H01L39/02 ,  H01L39/24

CPC classification number: H01L39/223 ,  H01L29/155 ,  H01L29/165 ,  H01L29/1606 ,  H01L29/205 ,  H01L29/437 ,  H01L39/025 ,  H01L39/228 ,  H01L39/2493

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.

公开(公告)号：US11674854B2

公开(公告)日：2023-06-13

申请号：US16460457

申请日：2019-07-02

Applicant: International Business Machines Corporation

Inventor： Salvatore Bernardo Olivadese ,  Daniela Florentina Bogorin ,  Nicholas Torleiv Bronn ,  Sean Hart ,  Patryk Gumann

IPC: G01K3/14 ,  G06N10/00 ,  G06F30/20

CPC classification number: G01K3/14 ,  G06F30/20 ,  G06N10/00

Abstract: Techniques regarding determining and/or analyzing temperature distributions experienced by quantum computer devices during operation are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a region component that can define a plurality of temperature regions from a quantum computing device layout. The computer executable component can also comprise a map component that can generate a map that characterizes a temperature distribution by determining at least one temperature achieved within the plurality of temperature regions during an operation of the quantum computing device layout.

公开(公告)号：US11621386B2

公开(公告)日：2023-04-04

申请号：US16373096

申请日：2019-04-02

Applicant: International Business Machines Corporation

Inventor： Sean Hart ,  Jay M. Gambetta ,  Patryk Gumann

IPC: H01L39/22 ,  H01L29/15 ,  H01L29/16 ,  H01L29/165 ,  H01L29/205 ,  H01L29/43 ,  H01L39/02 ,  H01L39/24

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.

公开(公告)号：US11537929B2

公开(公告)日：2022-12-27

申请号：US17233089

申请日：2021-04-16

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Nicholas T. Bronn ,  Daniela F. Bogorin ,  Patryk Gumann ,  Sean Hart ,  Salvatore B. Olivadese

IPC: H03M13/00 ,  G06N10/00 ,  H04L1/00 ,  G06N10/70 ,  H04B10/90

Abstract: A system for transmission of quantum information for quantum error correction includes an ancilla qubit chip including a plurality of ancilla qubits, and a data qubit chip spaced apart from the ancilla qubit chip, the data qubit chip including a plurality of data qubits. The system includes an interposer coupled to the ancilla qubit chip and the data qubit chip, the interposer including a dielectric material and a plurality of superconducting structures formed in the dielectric material. The superconducting structures enable transmission of quantum information between the plurality of data qubits on the data qubit chip and the plurality of ancilla qubits on the ancilla qubit chip via virtual photons for quantum error correction.

公开(公告)号：US11515460B2

公开(公告)日：2022-11-29

申请号：US16680078

申请日：2019-11-11

Applicant: International Business Machines Corporation

Inventor： Steven J. Holmes ,  Devendra K. Sadana ,  Sean Hart ,  Ning Li ,  Stephen W. Bedell ,  Patryk Gumann

IPC: H01L27/18 ,  H01L39/10 ,  H01L39/22

Abstract: A quantum computing device is fabricated by forming, on a superconductor layer, 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 outside the device region. The exposed region of the semiconductor layer is implanted, forming an isolation region 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 is formed. A reflectrometry wire comprising a second metal within the reflectrometry region is formed. A nanorod contact using the second metal within the portion of the device region outside the sensing region is formed.

公开(公告)号：US11430831B2

公开(公告)日：2022-08-30

申请号：US16907214

申请日：2020-06-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Patryk Gumann ,  Andrew W. Cross ,  Sean Hart ,  Jay Michael Gambetta

IPC: H01L27/18 ,  G06N10/00 ,  H01L29/16 ,  H01L39/02 ,  H01L39/22 ,  H01P7/08 ,  H03K17/92

Abstract: A quantum system includes a qubit array comprising a plurality of qubits. A bus resonator is coupled between at least one pair of qubits in the qubit array. A switch is coupled between the at least one qubit pair of qubits.