公开(公告)号：US20190164935A1

公开(公告)日：2019-05-30

申请号：US15823817

申请日：2017-11-28

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Martin O. Sandberg ,  David C. McKay ,  Patryk M. Gumann ,  Hanhee Paik ,  Jay M. Gambetta

IPC: H01L25/065 ,  H01L27/18 ,  H01L23/00 ,  H01L25/00 ,  H01L21/768 ,  H01L39/02 ,  G06N99/00

CPC classification number: H01L25/0657 ,  G06N10/00 ,  H01L21/76898 ,  H01L24/05 ,  H01L24/48 ,  H01L24/85 ,  H01L25/50 ,  H01L27/18 ,  H01L39/02 ,  H01L2224/04042 ,  H01L2224/48091 ,  H01L2224/48106 ,  H01L2224/48145 ,  H01L2224/4845 ,  H01L2224/85121 ,  H01L2224/85169 ,  H01L2224/85801 ,  H01L2225/06506

Abstract: Embodiments of the present invention disclose a computer system having a plurality of quantum circuits arranged in a two-dimensional plane-like structure, the quantum circuits comprising qubits and busses (i.e., qubit-qubit interconnects), and a method of formation therefor. A quantum computer system comprises a plurality of quantum circuits arranged in a two-dimensional pattern. At least one interior quantum circuit, not along the perimeter of the two-dimensional plane of the plurality of quantum circuits, contains a bottom chip, a device layer, a top chip, and a routing layer. A signal wire connects the device layer to the routing layer, wherein the signal wire breaks the two dimensional plane, for example, the signal wire extends into a different plane.

公开(公告)号：US20190287946A1

公开(公告)日：2019-09-19

申请号：US16422002

申请日：2019-05-24

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Martin O. Sandberg ,  David C. McKay ,  Patryk M. Gumann ,  Hanhee Paik ,  Jay M. Gambetta

IPC: H01L25/065 ,  G06N10/00 ,  H01L27/18 ,  H01L23/00 ,  H01L25/00 ,  H01L21/768 ,  H01L39/02

Abstract: Embodiments of the present invention disclose a computer system having a plurality of quantum circuits arranged in a two-dimensional plane-like structure, the quantum circuits comprising qubits and busses (i.e., qubit-qubit interconnects), and a method of formation therefor. A quantum computer system comprises a plurality of quantum circuits arranged in a two-dimensional pattern. At least one interior quantum circuit, not along the perimeter of the two-dimensional plane of the plurality of quantum circuits, contains a bottom chip, a device layer, a top chip, and a routing layer. A signal wire connects the device layer to the routing layer, wherein the signal wire breaks the two dimensional plane, for example, the signal wire extends into a different plane.

公开(公告)号：US11672187B2

公开(公告)日：2023-06-06

申请号：US16829439

申请日：2020-03-25

Applicant: International Business Machines Corporation

Inventor： Steven J. Holmes ,  Devendra K. Sadana ,  David C. McKay ,  Jared Barney Hertzberg ,  Stephen W. Bedell ,  Ning Li

IPC: H01L39/00 ,  H01L39/02 ,  G06N10/00 ,  H01L29/66 ,  H01L39/22 ,  G01R33/035

CPC classification number: H01L39/025 ,  G06N10/00 ,  H01L29/66977 ,  H01L39/223 ,  G01R33/0358

Abstract: Systems and techniques that facilitate quantum tuning via permanent magnetic flux elements are provided. In various embodiments, a system can comprise a qubit device. In various aspects, the system can further comprise a permanent magnet having a first magnetic flux, wherein an operational frequency of the qubit device is based on the first magnetic flux. In various instances, the system can further comprise an electromagnet having a second magnetic flux that tunes the first magnetic flux. In various cases, the permanent magnet can comprise a nanoparticle magnet. In various embodiments, the nanoparticle magnet can comprise manganese nanoparticles embedded in a silicon matrix. In various aspects, the system can further comprise an electrode that applies an electric current to the nanoparticle magnet in a presence of the second magnetic flux, thereby changing a strength of the first magnetic flux.

公开(公告)号：US20220083887A1

公开(公告)日：2022-03-17

申请号：US17018480

申请日：2020-09-11

Applicant: International Business Machines Corporation

Inventor： Jeffrey Joseph Ruedinger ,  Thomas Arab Alexander ,  David C. McKay

IPC: G06N10/00 ,  G06F8/41

Abstract: Systems, computer-implemented methods, and computer program products to facilitate quantum state measurement logic used in a quantum state measurement backend process are provided. According to an embodiment, a system can comprise a memory that stores computer executable components and a processor that executes the computer executable components stored in the memory. The computer executable components can comprise a stage control register component that defines a data processing function corresponding to at least one storage element in at least one stage of a quantum state measurement pipeline.

公开(公告)号：US11694106B2

公开(公告)日：2023-07-04

申请号：US18151039

申请日：2023-01-06

Applicant: International Business Machines Corporation

Inventor： David C. McKay ,  Jay M. Gambetta

IPC: G06N10/00

CPC classification number: G06N10/00

Abstract: A quantum computing device including a first plurality of qubits having a first resonance frequency and a second qubit having a second resonance frequency, the second resonance frequency being different from the first resonance frequency; and a first tunable frequency bus configured to couple the first plurality of qubits to the second qubit.

公开(公告)号：US20210305480A1

公开(公告)日：2021-09-30

申请号：US16829439

申请日：2020-03-25

Applicant: International Business Machines Corporation

Inventor： Steven J. Holmes ,  Devendra K. Sadana ,  David C. McKay ,  Jared Barney Hertzberg ,  Stephen W. Bedell ,  Ning Li

IPC: H01L39/02 ,  G06N10/00 ,  H01L29/66 ,  H01L39/22

Abstract: Systems and techniques that facilitate quantum tuning via permanent magnetic flux elements are provided. In various embodiments, a system can comprise a qubit device. In various aspects, the system can further comprise a permanent magnet having a first magnetic flux, wherein an operational frequency of the qubit device is based on the first magnetic flux. In various instances, the system can further comprise an electromagnet having a second magnetic flux that tunes the first magnetic flux. In various cases, the permanent magnet can comprise a nanoparticle magnet. In various embodiments, the nanoparticle magnet can comprise manganese nanoparticles embedded in a silicon matrix. In various aspects, the system can further comprise an electrode that applies an electric current to the nanoparticle magnet in a presence of the second magnetic flux, thereby changing a strength of the first magnetic flux.

公开(公告)号：US20230153669A1

公开(公告)日：2023-05-18

申请号：US18151039

申请日：2023-01-06

Applicant: International Business Machines Corporation

Inventor： David C. McKay ,  Jay M. Gambetta

IPC: G06N10/00

CPC classification number: G06N10/00

Abstract: A quantum computing device including a first plurality of qubits having a first resonance frequency and a second qubit having a second resonance frequency, the second resonance frequency being different from the first resonance frequency; and a first tunable frequency bus configured to couple the first plurality of qubits to the second qubit.

公开(公告)号：US10658340B2

公开(公告)日：2020-05-19

申请号：US16422002

申请日：2019-05-24

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Martin O. Sandberg ,  David C. McKay ,  Patryk M. Gumann ,  Hanhee Paik ,  Jay M. Gambetta

IPC: H01L39/24 ,  H01L25/065 ,  H01L23/00 ,  H01L25/00 ,  H01L21/768 ,  H01L39/02 ,  H01L27/18 ,  G06N10/00

Abstract: Embodiments of the present invention disclose a computer system having a plurality of quantum circuits arranged in a two-dimensional plane-like structure, the quantum circuits comprising qubits and busses (i.e., qubit-qubit interconnects), and a method of formation therefor. A quantum computer system comprises a plurality of quantum circuits arranged in a two-dimensional pattern. At least one interior quantum circuit, not along the perimeter of the two-dimensional plane of the plurality of quantum circuits, contains a bottom chip, a device layer, a top chip, and a routing layer. A signal wire connects the device layer to the routing layer, wherein the signal wire breaks the two dimensional plane, for example, the signal wire extends into a different plane.

公开(公告)号：US10347605B2

公开(公告)日：2019-07-09

申请号：US15823817

申请日：2017-11-28

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Martin O. Sandberg ,  David C. McKay ,  Patryk M. Gumann ,  Hanhee Paik ,  Jay M. Gambetta

IPC: H01L39/02 ,  H01L25/065 ,  H01L23/00 ,  H01L25/00 ,  H01L21/768 ,  H01L27/18 ,  G06N10/00

Abstract: Embodiments of the present invention disclose a computer system having a plurality of quantum circuits arranged in a two-dimensional plane-like structure, the quantum circuits comprising qubits and busses (i.e., qubit-qubit interconnects), and a method of formation therefor. A quantum computer system comprises a plurality of quantum circuits arranged in a two-dimensional pattern. At least one interior quantum circuit, not along the perimeter of the two-dimensional plane of the plurality of quantum circuits, contains a bottom chip, a device layer, a top chip, and a routing layer. A signal wire connects the device layer to the routing layer, wherein the signal wire breaks the two dimensional plane, for example, the signal wire extends into a different plane.