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1.发明授权公开(公告)号：US12082335B2
公开(公告)日：2024-09-03
申请号：US17476612
申请日：2021-09-16
申请人： Google LLC
CPC分类号： H05K1/0219 , G06N10/00 , H03K5/01 , H05K1/028 , H05K1/09 , H05K1/116 , H05K3/06 , H05K3/188 , H05K2201/0154
摘要： A flex circuit board can be used in transmitting signals in a quantum computing system. The flex circuit board can include at least one dielectric layer and at least one superconducting layer disposed on a surface of the at least one dielectric layer. The at least one superconducting layer can include a superconducting material. The superconducting material can be superconducting at a temperature less than about 3 kelvin. The flex circuit board can have at least one metal structure electroplated onto the at least one superconducting layer.
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公开(公告)号：US20230130578A1
公开(公告)日：2023-04-27
申请号：US18079641
申请日：2022-12-12
申请人： Google LLC
发明人： John Martinis
摘要： The subject matter of the present disclosure may be embodied in devices, such as flexible wiring, that include: an elongated flexible substrate; multiple electrically conductive traces arranged in an array on a first side of the elongated flexible substrate; and an electromagnetic shielding layer on a second side of the elongated flexible substrate, the second side being opposite the first side, in which the elongated flexible substrate includes a fold region between a first electronically conductive trace and a second electrically conductive trace such that the electromagnetic shielding layer provides electromagnetic shielding between the first electronically conductive trace and the second electrically conductive trace.
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公开(公告)号：US20220083893A1
公开(公告)日：2022-03-17
申请号：US17476655
申请日：2021-09-16
申请人： Google LLC
摘要： A quantum computing system can include one or more classical processors. The quantum computing system can include quantum hardware including one or more qubits. The quantum computing system can include a chamber mount configured to support the quantum hardware. The quantum computing system can include a vacuum chamber configured to receive the chamber mount and dispose the quantum hardware in a vacuum. The vacuum chamber can form a cooling gradient from an end of the vacuum chamber to the quantum hardware. The quantum computing system can include a plurality of flex circuit boards including one or more signal lines. Each of the plurality of flex circuit boards can be configured to transmit signals by the one or more signal lines through the vacuum chamber to couple the one or more classical processors to the quantum hardware.
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公开(公告)号：US20210312314A1
公开(公告)日：2021-10-07
申请号：US17350545
申请日：2021-06-17
申请人： Google LLC
发明人： John Martinis , Rami Barends , Austin Greig Fowler
摘要： Methods, systems, and apparatus for operating a system of qubits. In one aspect, a method includes operating a first qubit from a first plurality of qubits at a first qubit frequency from a first qubit frequency region, and operating a second qubit from the first plurality of qubits at a second qubit frequency from a second first qubit frequency region, the second qubit frequency and the second first qubit frequency region being different to the first qubit frequency and the first qubit frequency region, respectively, wherein the second qubit is diagonal to the first qubit in a two-dimensional grid of qubits.
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公开(公告)号：US20210256412A1
公开(公告)日：2021-08-19
申请号：US17201510
申请日：2021-03-15
申请人： Google LLC
摘要： A qubit device includes an elongated thin film uninterrupted by Josephson junctions, a quantum device in electrical contact with a proximal end of the elongated thin film, and a ground plane that is co-planar with the elongated thin film and is in electrical contact with a distal end of the elongated thin film, in which the thin film, the quantum device, and the ground plane comprise a material that is superconducting at a designed operating temperature.
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公开(公告)号：US10949769B2
公开(公告)日：2021-03-16
申请号：US16849363
申请日：2020-04-15
申请人： Google LLC
摘要： A qubit device includes an elongated thin film uninterrupted by Josephson junctions, a quantum device in electrical contact with a proximal end of the elongated thin film, and a ground plane that is co-planar with the elongated thin film and is in electrical contact with a distal end of the elongated thin film, in which the thin film, the quantum device, and the ground plane comprise a material that is superconducting at a designed operating temperature.
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公开(公告)号：US20210035006A1
公开(公告)日：2021-02-04
申请号：US16636522
申请日：2017-08-09
申请人： Google LLC
发明人： John Martinis , Rami Barends , Austin Greig Fowler
IPC分类号： G06N10/00 , H03K19/177
摘要： Methods and systems for performing a surface code error detection cycle. In one aspect, a method includes initializing and applying Hadamard gates to multiple measurement qubits; performing entangling operations on a first set of paired qubits, wherein each pair comprises a measurement qubit coupled to a neighboring data qubit in a first direction; performing entangling operations on a second set of paired qubits, wherein each pair comprises a measurement qubit coupled to a neighboring data qubit in a second or third direction, the second and third direction being perpendicular to the first direction, the second direction being opposite to the third direction; performing entangling operations on a third set of paired qubits, wherein each pair comprises a measurement qubit coupled to a neighboring data qubit in a fourth direction, the fourth direction being opposite to the first direction; applying Hadamard gates to the measurement qubits; and measuring the measurement qubits.
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公开(公告)号：US20240086747A1
公开(公告)日：2024-03-14
申请号：US18202190
申请日：2023-05-25
申请人： Google LLC
发明人： John Martinis , Rami Barends , Austin Greig Fowler
摘要： Methods, systems, and apparatus for operating a system of qubits. In one aspect, a method includes operating a first qubit from a first plurality of qubits at a first qubit frequency from a first qubit frequency region, and operating a second qubit from the first plurality of qubits at a second qubit frequency from a second first qubit frequency region, the second qubit frequency and the second first qubit frequency region being different to the first qubit frequency and the first qubit frequency region, respectively, wherein the second qubit is diagonal to the first qubit in a two-dimensional grid of qubits.
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公开(公告)号：US11562280B2
公开(公告)日：2023-01-24
申请号：US16636522
申请日：2017-08-09
申请人： Google LLC
发明人： John Martinis , Rami Barends , Austin Greig Fowler
IPC分类号： G06N10/00 , H03K19/177
摘要： Methods and systems for performing a surface code error detection cycle. In one aspect, a method includes initializing and applying Hadamard gates to multiple measurement qubits; performing entangling operations on a first set of paired qubits, wherein each pair comprises a measurement qubit coupled to a neighboring data qubit in a first direction; performing entangling operations on a second set of paired qubits, wherein each pair comprises a measurement qubit coupled to a neighboring data qubit in a second or third direction, the second and third direction being perpendicular to the first direction, the second direction being opposite to the third direction; performing entangling operations on a third set of paired qubits, wherein each pair comprises a measurement qubit coupled to a neighboring data qubit in a fourth direction, the fourth direction being opposite to the first direction; applying Hadamard gates to the measurement qubits; and measuring the measurement qubits.
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公开(公告)号：US11557709B2
公开(公告)日：2023-01-17
申请号：US16616733
申请日：2017-09-07
申请人： Google LLC
发明人： John Martinis
摘要： The subject matter of the present disclosure may be embodied in devices, such as flexible wiring, that include: an elongated flexible substrate; multiple electrically conductive traces arranged in an array on a first side of the elongated flexible substrate; and an electromagnetic shielding layer on a second side of the elongated flexible substrate, the second side being opposite the first side, in which the elongated flexible substrate includes a fold region between a first electronically conductive trace and a second electrically conductive trace such that the electromagnetic shielding layer provides electromagnetic shielding between the first electronically conductive trace and the second electrically conductive trace.
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