公开(公告)号：US20250053839A1

公开(公告)日：2025-02-13

申请号：US18447412

申请日：2023-08-10

Applicant: International Business Machines Corporation

Inventor： Aaron Finck ,  Cihan Kurter ,  Muir Kumph ,  Kentaro Heya

IPC: G06N10/40

Abstract: Devices and/or computer-implemented methods facilitating suppression of cross-talk between qubits are provided. In an embodiment, a device can comprise a first transmon qubit coupled to a first tunable coupled qubit (TCQ) interconnect, wherein each pad of the first transmon qubit are coupled to corresponding outer pads of the first TCQ interconnect; a second transmon qubit coupled to a second TCQ interconnect, wherein each pad of the second transmon qubit are coupled to corresponding outer pads of the second TCQ interconnect; and a middle pad of the first TCQ interconnect coupled to a middle pad of the second TCQ interconnect, wherein the coupling comprises each middle pad coupled to a resonator.

公开(公告)号：US20240070506A1

公开(公告)日：2024-02-29

申请号：US17822499

申请日：2022-08-26

Applicant: International Business Machines Corporation

Inventor： Devin Underwood ,  Timothy Phung ,  Muir Kumph

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: One or more systems, devices, and/or methods of use provided herein relate to signal filters for scalable quantum computing architectures. According to one embodiment, a device can comprise a circuit board comprising a plurality of layers, wherein various ones of the plurality of layers comprises a different absorptive material, and a plurality of signal lines that pass through the circuit board, wherein a first layer of the circuit board is comprised of a first material that filters a first signal line that traverses through at least the first layer of the plurality of layers.

公开(公告)号：US20230391609A1

公开(公告)日：2023-12-07

申请号：US17805436

申请日：2022-06-03

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Muir Kumph ,  Vivekananda P. Adiga

IPC: B81B7/00 ,  H01L39/22 ,  B81C1/00

CPC classification number: B81B7/0006 ,  H01L39/22 ,  B81C1/00626 ,  B81B2207/015

Abstract: A microelectromechanical system (MEMS) device and method of fabrication are provided. The MEMS devices includes a silicon substrate. The silicon substrate includes a top surface. An interconnect is machined from the silicon substrate. The interconnect includes at a spring body that has least two spring arms. Each spring arm includes a first end distal from a center of the interconnect, a second end proximate the center of the interconnect, and a single turn of a constant curvature. Each spring arm is configured to move rotationally in a plane parallel to the top surface of the silicon substrate.

公开(公告)号：US20230186135A1

公开(公告)日：2023-06-15

申请号：US17644424

申请日：2021-12-15

Applicant: International Business Machines Corporation

Inventor： Muir Kumph ,  Oliver Dial ,  John Blair

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: An apparatus comprising a first qubit has a first driving frequency and a second qubit electrically connected to the first qubit, wherein the second qubit has a second driving frequency, wherein the second driving frequency is different than the first driving frequency. A readout resonator electrically connected to the first qubit and the second qubit and a filter electrically connected to the readout resonator, wherein the filter allows for the first qubit to be driven at the second driving frequency of the second qubit. A drive unit electrically connected to the filter.

公开(公告)号：US10705556B2

公开(公告)日：2020-07-07

申请号：US15721071

申请日：2017-09-29

Applicant: International Business Machines Corporation

Inventor： Mohit Kapur ,  Muir Kumph ,  Jiri Stehlik

IPC: G06F1/02 ,  G06F1/03

Abstract: An aspect includes a direct digital synthesis system including a waveform generator with a waveform memory operable to store a plurality of waveform vectors and output a selected waveform vector. The direct digital synthesis system also includes a digital-to-analog converter operable to convert the selected waveform vector from a digital value to an analog signal responsive to a reference clock. The direct digital synthesis system further includes a controller operable to maintain phase continuity of the analog signal when an output of the analog signal is interrupted and restored.

公开(公告)号：US20250131307A1

公开(公告)日：2025-04-24

申请号：US18493214

申请日：2023-10-24

Applicant: International Business Machines Corporation

Inventor： Aaron Finck ,  Muir Kumph

IPC: G06N10/40 ,  G06N10/20

Abstract: Devices and/or computer-implemented methods facilitating suppression of spectator effects between qubits are provided. In an embodiment, a device can comprise a tunable-coupler qubit (TCQ), wherein a middle pad of the TCQ is coupled to a first capacitively-shunted flux qubit (CSFQ) coupler and wherein outer pads of the TCQ are coupled to a second CSFQ coupler; a first superconducting qubit coupled to the first CSFQ coupler; and a second superconducting qubit coupled to the second CSFQ coupler.

公开(公告)号：US20250030142A1

公开(公告)日：2025-01-23

申请号：US18357119

申请日：2023-07-22

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Muir Kumph ,  John Timmerwilke

IPC: H01P3/14 ,  H01P11/00

Abstract: A flexible coaxial waveguide includes a plurality of dielectric members including a center portion having a hole. An inner conductor having the plurality of dielectric members is arranged through the hole in the center portion, and an outer conductor surrounds the plurality of dielectric members. The outer conductor is a bellows-shaped outer conductor.

公开(公告)号：US11972319B2

公开(公告)日：2024-04-30

申请号：US17111053

申请日：2020-12-03

Applicant: International Business Machines Corporation

Inventor： Muir Kumph ,  David C. Mckay ,  Oliver Dial

IPC: G06N10/00 ,  G06N10/40

CPC classification number: G06N10/00 ,  G06N10/40

Abstract: Techniques regarding qubit coupling structures that enable RIP gates are provided. For example, one or more embodiments described herein can comprise an apparatus that can include a coupling structure coupled to a first qubit and a second qubit. The coupling structure can have a plurality of coupling pathways. A coupling pathway from the plurality of coupling pathways can be a resonator. Also, the first qubit can be coupled to a first end of the resonator, and the second qubit can be coupled to a point along a length of the resonator.

公开(公告)号：US20230401473A1

公开(公告)日：2023-12-14

申请号：US17806862

申请日：2022-06-14

Applicant: International Business Machines Corporation

Inventor： Muir Kumph

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: Systems and techniques that facilitate dual-multiplexer filtration of inputted qubit readout signals are provided. In various embodiments, a device can comprise a cable that can transmit an input signal to a qubit. In various aspects, the input signal can include at least one qubit readout signal and at least one qubit control signal. In various instances, the device can further comprise a dual-multiplexer circuit located along the cable. In various cases, the dual-multiplexer circuit can selectively attenuate the at least one qubit readout signal.

公开(公告)号：US20230359919A1

公开(公告)日：2023-11-09

申请号：US17819535

申请日：2022-08-12

Applicant: International Business Machines Corporation

Inventor： Timothy Phung ,  Muir Kumph

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: One or more systems, devices and/or methods of use herein relate to modular quantum devices. According to an embodiment, a device can comprise a first module comprising a first qubit coupled to a first transmission line resonator, and a second module comprising a second qubit coupled to a second transmission line resonator, wherein the first module is embodied on a first chip and wherein the second module is embodied on a second chip.