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公开(公告)号：US20220180235A1
公开(公告)日：2022-06-09
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
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.
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公开(公告)号：US20210408112A1
公开(公告)日：2021-12-30
申请号：US16917016
申请日：2020-06-30
Applicant: International Business Machines Corporation
Inventor： Aaron Finck , John Blair , April Carniol , Oliver Dial , Muir Kumph
Abstract: Devices and/or computer-implemented methods to facilitate ZZ cancellation between qubits are provided. According to an embodiment, a device can comprise a coupler device that operates in a first oscillating mode and a second oscillating mode. The device can further comprise a first superconducting qubit coupled to the coupler device based on a first oscillating mode structure corresponding to the first oscillating mode and based on a second oscillating mode structure corresponding to the second oscillating mode. The device can further comprise a second superconducting qubit coupled to the coupler device based on the first oscillating mode structure and the second oscillating mode structure.
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公开(公告)号：US10283696B2
公开(公告)日：2019-05-07
申请号：US14949248
申请日：2015-11-23
Applicant: International Business Machines Corporation
Inventor： Oliver Dial , Jay M. Gambetta , Douglas T. McClure, III , Matthias Steffen
Abstract: A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity, and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts and higher resonant frequency posts. The higher resonant frequency posts are arranged around the lower resonant frequency posts. A first plate is opposite a second plate in the cavity. One end of the lower resonant frequency posts is positioned on the second plate so as to be electrically connected to the second plate. Another end of the lower resonant frequency posts in the array is open so as not to form an electrical connection to the first plate. Qubits are connected to the lower resonant frequency posts in the array of posts, such that each of the qubits is physically connected to one or two of the lower resonant frequency posts in the array of posts.
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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
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.
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公开(公告)号：US11960970B2
公开(公告)日：2024-04-16
申请号：US17096170
申请日：2020-11-12
Applicant: International Business Machines Corporation
Inventor： Oliver Dial , Antonio Corcoles-Gonzalez , Maika Takita , David C. Mckay
Abstract: Systems and techniques that facilitate strategic pausing for quantum state leakage mitigation are provided. In various embodiments, a system can comprise a detection component that can detect a quantum state leakage associated with one or more qubits. In various aspects, the system can further comprise a pause component that can, in response to detecting the quantum state leakage, generate a time pause prior to execution of a quantum circuit on the one or more qubits. In various embodiments, the pause component can generate the time pause after execution of a previous quantum circuit on the one or more qubits, where the quantum state leakage arises during the execution of the previous quantum circuit. In some cases, the quantum state leakage can decay during the time pause.
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Patent Agency Ranking
公开(公告)号：US10529909B2
公开(公告)日：2020-01-07
申请号：US15945281
申请日：2018-04-04
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor： Oliver Dial , Jay M. Gambetta , Douglas T. McClure, III , Matthias Steffen
Abstract: A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity, and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts and higher resonant frequency posts. The higher resonant frequency posts are arranged around the lower resonant frequency posts. A first plate is opposite a second plate in the cavity. One end of the lower resonant frequency posts is positioned on the second plate so as to be electrically connected to the second plate. Another end of the lower resonant frequency posts in the array is open so as not to form an electrical connection to the first plate. Qubits are connected to the lower resonant frequency posts in the array of posts, such that each of the qubits is physically connected to one or two of the lower resonant frequency posts in the array of posts.
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公开(公告)号：US09985193B2
公开(公告)日：2018-05-29
申请号：US14755181
申请日：2015-06-30
Applicant: International Business Machines Corporation
Inventor： Oliver Dial , Jay M. Gambetta , Douglas T. McClure, III , Matthias Steffen
CPC classification number: H01L39/24 , B82Y10/00 , G06N99/002 , H01L39/14
Abstract: A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity, and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts and higher resonant frequency posts. The higher resonant frequency posts are arranged around the lower resonant frequency posts. A first plate is opposite a second plate in the cavity. One end of the lower resonant frequency posts is positioned on the second plate so as to be electrically connected to the second plate. Another end of the lower resonant frequency posts in the array is open so as not to form an electrical connection to the first plate. Qubits are connected to the lower resonant frequency posts in the array of posts, such that each of the qubits is physically connected to one or two of the lower resonant frequency posts in the array of posts.
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公开(公告)号：US20170005255A1
公开(公告)日：2017-01-05
申请号：US14755181
申请日：2015-06-30
Applicant: International Business Machines Corporation
Inventor： Oliver Dial , Jay M. Gambetta , Douglas T. McClure, III , Matthias Steffen
CPC classification number: H01L39/24 , B82Y10/00 , G06N99/002 , H01L39/14
Abstract: A technique relates a superconducting microwave cavity. An array of posts has different heights in the cavity, and the array supports a localized microwave mode. The array of posts includes lower resonant frequency posts and higher resonant frequency posts. The higher resonant frequency posts are arranged around the lower resonant frequency posts. A first plate is opposite a second plate in the cavity. One end of the lower resonant frequency posts is positioned on the second plate so as to be electrically connected to the second plate. Another end of the lower resonant frequency posts in the array is open so as not to form an electrical connection to the first plate. Qubits are connected to the lower resonant frequency posts in the array of posts, such that each of the qubits is physically connected to one or two of the lower resonant frequency posts in the array of posts.
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公开(公告)号：US12249748B2
公开(公告)日：2025-03-11
申请号：US17935023
申请日：2022-09-23
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor： Muir Kumph , Oliver Dial , John Michael Cotte , David Abraham
Abstract: A quantum computing chip device provides an edge based capacitive, intra-chip connection. A first chip includes a first signal line with a distal end positioned proximate to or on an edge of the first chip and a proximal end positioned away from the edge of the first chip. A second chip includes a second signal line with a distal end positioned proximate to or on an edge of the second chip and a proximal end positioned away from the edge of the second chip. The first signal line and the second signal line are configured to conduct a signal. The second signal line of the second chip is disposed in alignment for a capacitive bus connection to the first signal line of the first chip.
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公开(公告)号：US20240104414A1
公开(公告)日：2024-03-28
申请号：US17935023
申请日：2022-09-23
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor： Muir Kumph , Oliver Dial , John Michael Cotte , David Abraham
CPC classification number: G06N10/40 , H01R12/721 , H02J50/05
Abstract: A quantum computing chip device provides an edge based capacitive, intra-chip connection. A first chip includes a first signal line with a distal end positioned proximate to or on an edge of the first chip and a proximal end positioned away from the edge of the first chip. A second chip includes a second signal line with a distal end positioned proximate to or on an edge of the second chip and a proximal end positioned away from the edge of the second chip. The first signal line and the second signal line are configured to conduct a signal. The second signal line of the second chip is disposed in alignment for a capacitive bus connection to the first signal line of the first chip.
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