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公开(公告)号:US12022750B2
公开(公告)日:2024-06-25
申请号:US18159777
申请日:2023-01-26
Applicant: International Business Machines Corporation
Inventor: Aaron Finck , April Carniol , John Blair
CPC classification number: H10N69/00 , G06N10/00 , H01P3/003 , H10N60/12 , H10N60/805
Abstract: Devices and/or computer-implemented methods facilitating static ZZ suppression and Purcell loss reduction using mode-selective coupling in two junction superconducting qubits are provided. In an embodiment, a device can comprise a superconducting bus resonator. The device can further comprise a first superconducting qubit. The device can further comprise a second superconducting qubit, the first superconducting qubit and the second superconducting qubit respectively comprising: a first superconducting pad; a second superconducting pad; a third superconducting pad; a first Josephson Junction coupled to the first superconducting pad and the second superconducting pad; and a second Josephson Junction coupled to the second superconducting pad and the third superconducting pad. The first superconducting pad and the second superconducting pad of the first superconducting qubit and the second superconducting qubit are coupled to the superconducting bus resonator. The superconducting bus resonator entangles the first superconducting qubit and the second superconducting qubit based on receiving a control signal.
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公开(公告)号:US20210408113A1
公开(公告)日:2021-12-30
申请号:US16917056
申请日:2020-06-30
Applicant: International Business Machines Corporation
Inventor: Aaron Finck , April Carniol , John Blair
Abstract: Devices and/or computer-implemented methods facilitating static ZZ suppression and Purcell loss reduction using mode-selective coupling in two-junction superconducting qubits are provided. In an embodiment, a device can comprise a superconducting bus resonator. The device can further comprise a first superconducting qubit. The device can further comprise a second superconducting qubit, the first superconducting qubit and the second superconducting qubit respectively comprising: a first superconducting pad; a second superconducting pad; a third superconducting pad; a first Josephson Junction coupled to the first superconducting pad and the second superconducting pad; and a second Josephson Junction coupled to the second superconducting pad and the third superconducting pad. The first superconducting pad and the second superconducting pad of the first superconducting qubit and the second superconducting qubit are coupled to the superconducting bus resonator. The superconducting bus resonator entangles the first superconducting qubit and the second superconducting qubit based on receiving a control signal.
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3.
公开(公告)号:US20240220697A1
公开(公告)日:2024-07-04
申请号:US18092130
申请日:2022-12-30
Applicant: International Business Machines Corporation
Inventor: DONGBING SHAO , April Carniol , Jyotica Patel , Michael Justin Beckley , James R. Brancaccio
IPC: G06F30/392 , G06F30/398
CPC classification number: G06F30/392 , G06F30/398
Abstract: An integrated circuit design is partitioned into a plurality of cells and a plurality of images of a stitched chip design are generated based on the plurality of cells. At least one of the images is wrapped with a chrome border and a blading outline to generate a mask design. Design information is extracted from the mask design and the stitched chip design. A scanner job file for fabricating the integrated circuit design is generated based on the extracted design information and the fabrication of an integrated circuit using the scanner job file is facilitated.
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公开(公告)号:US11620562B2
公开(公告)日:2023-04-04
申请号:US17409425
申请日:2021-08-23
Applicant: International Business Machines Corporation
Inventor: Aaron Finck , John Blair , April Carniol
Abstract: Systems and techniques that facilitate entanglement via driving dark modes are provided. In various embodiments, a method can comprise accessing a first multi-mode qubit and a second multi-mode qubit. In various cases, the first multi-mode qubit can be coupled to the second multi-mode qubit by a mode-selective coupler. In various aspects, the method can further comprise exciting a dark mode of the first multi-mode qubit. In various cases, the exciting the dark mode can entangle the first multi-mode qubit with the second multi-mode qubit.
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公开(公告)号:US20230053543A1
公开(公告)日:2023-02-23
申请号:US17409425
申请日:2021-08-23
Applicant: International Business Machines Corporation
Inventor: Aaron Finck , John Blair , April Carniol
Abstract: Systems and techniques that facilitate entanglement via driving dark modes are provided. In various embodiments, a method can comprise accessing a first multi-mode qubit and a second multi-mode qubit. In various cases, the first multi-mode qubit can be coupled to the second multi-mode qubit by a mode-selective coupler. In various aspects, the method can further comprise exciting a dark mode of the first multi-mode qubit. In various cases, the exciting the dark mode can entangle the first multi-mode qubit with the second multi-mode qubit.
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6.
公开(公告)号:US20240306519A1
公开(公告)日:2024-09-12
申请号:US18670042
申请日:2024-05-21
Applicant: International Business Machines Corporation
Inventor: Aaron Finck , April Carniol , John Blair
CPC classification number: H10N69/00 , G06N10/00 , H01P3/003 , H10N60/12 , H10N60/805
Abstract: Devices and/or computer-implemented methods facilitating static ZZ suppression and Purcell loss reduction using mode-selective coupling in two-junction superconducting qubits are provided. In an embodiment, a device can comprise a superconducting bus resonator. The device can further comprise a first superconducting qubit. The device can further comprise a second superconducting qubit, the first superconducting qubit and the second superconducting qubit respectively comprising: a first superconducting pad; a second superconducting pad; a third superconducting pad; a first Josephson Junction coupled to the first superconducting pad and the second superconducting pad; and a second Josephson Junction coupled to the second superconducting pad and the third superconducting pad. The first superconducting pad and the second superconducting pad of the first superconducting qubit and the second superconducting qubit are coupled to the superconducting bus resonator. The superconducting bus resonator entangles the first superconducting qubit and the second superconducting qubit based on receiving a control signal.
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公开(公告)号:US20240086752A1
公开(公告)日:2024-03-14
申请号:US17932269
申请日:2022-09-14
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor: Thomas George McConkey , April Carniol , Srikanth Srinivasan , Joseph Robert Suttle
IPC: G06N10/40
CPC classification number: G06N10/40
Abstract: A device includes a first set of circuit components implementing a qubit and a second set of circuit components implementing a readout resonator for reading out a state of the qubit. A first footprint of the first set of circuit components overlaps a second footprint of the second set of circuit components. The first footprint is oriented relative to the second footprint based on a first electric dipole of the first set of circuit components and a second electric dipole of the second set of circuit components.
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公开(公告)号:US11777478B2
公开(公告)日:2023-10-03
申请号:US17548471
申请日:2021-12-10
Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor: Salvatore Bernardo Olivadese , Patryk Gumann , Sean Hart , April Carniol
IPC: G06N10/20 , H03K5/1252 , H03K17/92
CPC classification number: H03K5/1252 , G06N10/20 , H03K17/92
Abstract: A quantum circuit includes a first qubit and a second qubit. A bus resonator transmission line is coupled between the first qubit and the second qubit. A readout bus is coupled to the first qubit. A switch is coupled to the bus resonator transmission line between the first qubit and the second qubit.
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公开(公告)号:US12089511B2
公开(公告)日:2024-09-10
申请号:US18165479
申请日:2023-02-07
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:US20240138270A1
公开(公告)日:2024-04-25
申请号:US18165479
申请日:2023-02-07
Applicant: International Business Machines Corporation
Inventor: Aaron Finck , John Blair , April Carniol , Oliver Dial , Muir Kumph
CPC classification number: H10N69/00 , G06N10/40 , G06N10/70 , H10N60/12 , H10N60/805
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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