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公开(公告)号：US09729152B2
公开(公告)日：2017-08-08
申请号：US15218548
申请日：2016-07-25
IPC分类号： H03K19/195 , H03K17/92 , H03K19/003
CPC分类号： H03K19/00346 , B82Y10/00 , G06N99/002 , H03K19/195
摘要： A mechanism relates a superconductor circuit. A Δ circuit includes a first node connecting a Purcell capacitor to a qubit coupling capacitor, a second node connecting the Purcell capacitor to a readout coupling capacitor, and a third node connecting the qubit coupling capacitor to the readout coupling capacitor. A qubit is connected to the first node and has a qubit frequency. A readout resonator connects to the third node combining with the Purcell capacitor to form a filter. Capacitance of the Purcell capacitor is determined as a factor of the qubit frequency of the qubit and blocks emissions of the qubit at the qubit frequency. Capacitance of the Purcell capacitor causes destructive interference, between a first path containing Purcell capacitor and a second path containing both the qubit coupling capacitor and readout coupling capacitor, in order to block emissions of the qubit at the qubit frequency to the external environment.
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公开(公告)号：US20240098939A1
公开(公告)日：2024-03-21
申请号：US17934194
申请日：2022-09-21
发明人： Nicholas A. Masluk
CPC分类号： H05K7/20372 , G06N10/40
摘要： A thermal radiation shield interface for cryogenic systems includes a first element with a distal, free end. Flanges project from the distal, free end of the first element. A second element also includes a distal, free end. Flanges project from the distal, free end of the second element. The flanges of the first element and the flanges of the second element are positioned in an interleaved arrangement to cover an opening between the first element and the second element shielding the opening from radiation leakage.
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公开(公告)号：US20220122749A1
公开(公告)日：2022-04-21
申请号：US17074289
申请日：2020-10-19
发明人： Nicholas A. Masluk
摘要： Techniques facilitating electrical coupling within cryogenic environments are provided. In one example, an electrical coupling device for a cryogenic electronics system can comprise a flexible wiring strip that includes non-superconducting wiring and a thermal break that includes superconducting wiring. The superconducting wiring can be coupled with the flexible wiring strip to bridge a gap defined, in part, by the flexible wiring strip. The superconducting wiring comprises higher electrical conductivity and lower thermal conductivity than the non-superconducting wiring.
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4.发明授权Reducing spontaneous emission in circuit quantum electrodynamics by a combined readout and filter technique 有权通过组合读出和滤波技术降低电路量子电动力学中的自发辐射公开(公告)号：US09438245B2
公开(公告)日：2016-09-06
申请号：US14512489
申请日：2014-10-13
IPC分类号： H03K19/195 , H03K17/92 , H03K19/003
CPC分类号： H03K19/00346 , B82Y10/00 , G06N99/002 , H03K19/195
摘要： A mechanism relates a superconductor circuit. A Δ circuit includes a first node connecting a Purcell capacitor to a qubit coupling capacitor, a second node connecting the Purcell capacitor to a readout coupling capacitor, and a third node connecting the qubit coupling capacitor to the readout coupling capacitor. A qubit is connected to the first node and has a qubit frequency. A readout resonator connects to the third node combining with the Purcell capacitor to form a filter. Capacitance of the Purcell capacitor is determined as a factor of the qubit frequency of the qubit and blocks emissions of the qubit at the qubit frequency. Capacitance of the Purcell capacitor causes destructive interference, between a first path containing Purcell capacitor and a second path containing both the qubit coupling capacitor and readout coupling capacitor, in order to block emissions of the qubit at the qubit frequency to the external environment.
摘要翻译： 一种机制涉及超导体电路。 Δ电路包括将Purcell电容器连接到量子位耦合电容器的第一节点，将Purcell电容器连接到读出耦合电容器的第二节点和将量子位耦合电容器连接到读出耦合电容器的第三节点。 量子位连接到第一个节点并具有量子位频率。 读出谐振器连接到与Purcell电容器组合的第三节点以形成滤波器。 Purcell电容的电容被确定为量子位的量子位频率的一个因素，并阻止量子比特的量子位发射。 Purcell电容的电容在包含Purcell电容器的第一路径和包含量子位耦合电容器和读出耦合电容器的第二路径之间产生相消干扰，以阻止量子位的量子位到量子位到外部环境的发射。
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5.发明申请REDUCING SPONTANEOUS EMISSION IN CIRCUIT QUANTUM ELECTRODYNAMICS BY A COMBINED READOUT AND FILTER TECHNIQUE 有权通过组合式读数和滤波技术降低电路量子电动力学中的自发放电公开(公告)号：US20160156356A1
公开(公告)日：2016-06-02
申请号：US14512489
申请日：2014-10-13
IPC分类号： H03K19/195 , H03K19/003
CPC分类号： H03K19/00346 , B82Y10/00 , G06N99/002 , H03K19/195
摘要： A mechanism relates a superconductor circuit. A Δ circuit includes a first node connecting a Purcell capacitor to a qubit coupling capacitor, a second node connecting the Purcell capacitor to a readout coupling capacitor, and a third node connecting the qubit coupling capacitor to the readout coupling capacitor. A qubit is connected to the first node and has a qubit frequency. A readout resonator connects to the third node combining with the Purcell capacitor to form a filter. Capacitance of the Purcell capacitor is determined as a factor of the qubit frequency of the qubit and blocks emissions of the qubit at the qubit frequency. Capacitance of the Purcell capacitor causes destructive interference, between a first path containing Purcell capacitor and a second path containing both the qubit coupling capacitor and readout coupling capacitor, in order to block emissions of the qubit at the qubit frequency to the external environment.
摘要翻译： 一种机制涉及超导体电路。 A＆Dgr 电路包括将Purcell电容器连接到量子位耦合电容器的第一节点，将Purcell电容器连接到读出耦合电容器的第二节点和将量子位耦合电容器连接到读出耦合电容器的第三节点。 量子位连接到第一个节点并具有量子位频率。 读出谐振器连接到与Purcell电容器组合的第三节点以形成滤波器。 Purcell电容的电容被确定为量子位的量子位频率的一个因素，并阻止量子比特的量子位发射。 Purcell电容的电容在包含Purcell电容器的第一路径和包含量子位耦合电容器和读出耦合电容器的第二路径之间产生相消干扰，以阻止量子位的量子位到量子位到外部环境的发射。
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公开(公告)号：US09344092B2
公开(公告)日：2016-05-17
申请号：US14453718
申请日：2014-08-07
CPC分类号： H03K19/1954 , H03K17/92
摘要： A technique relates to a superconductor tunable notch filter. A Josephson junction filter array is connected to a coupling pad and connected to ground. The Josephson junction filter array includes a filter inductance. The Josephson junction filter array connected to the coupling pad forms a filter capacitance. A Josephson junction bias array is connected to the coupling pad and connected to a current source. The Josephson junction bias array includes a bias inductance. A transmission line is connected to the coupling pad in which connection of the transmission line and the coupling pad forms a coupling capacitance, such that the filter inductance and the filter capacitance connect to the transmission line through the coupling capacitance. The Josephson junction filter array includes a notch filter frequency that is tunable according to a magnitude of a current bias from the current source.
摘要翻译： 一种技术涉及超导体可调陷波滤波器。 约瑟夫逊结滤波器阵列连接到耦合垫并连接到地。 约瑟夫逊结滤波器阵列包括滤波电感。 连接到耦合垫的约瑟夫逊结滤波器阵列形成滤波电容。 约瑟夫逊结偏置阵列连接到耦合焊盘并连接到电流源。 约瑟夫逊结偏置阵列包括偏置电感。 传输线连接到耦合焊盘，其中传输线和耦合焊盘的连接形成耦合电容，使得滤波电感和滤波电容通过耦合电容连接到传输线。 约瑟夫逊结滤波器阵列包括根据来自电流源的电流偏差的幅度可调谐的陷波滤波器频率。
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7.发明公开公开(公告)号：US20240230202A9
公开(公告)日：2024-07-11
申请号：US17445265
申请日：2021-08-17
发明人： David Abraham , Gerard McVicker , Sri M. Sri-Jayantha , Vijayeshwar Das Khanna , Nicholas A. Masluk
摘要： A cryogenic system comprising a first cryogenic stage and a second cryogenic stage. A first signal line passing from the first cryogenic stage and is connected to a superconducting thermal break in the second cryogenic stage. A second signal line connecting the superconducting thermal break to a cryogenic device.
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8.发明公开公开(公告)号：US20240133609A1
公开(公告)日：2024-04-25
申请号：US17445265
申请日：2021-08-16
发明人： David Abraham , Gerard McVicker , Sri M. Sri-Jayantha , Vijayeshwar Das Khanna , Nicholas A. Masluk
摘要： A cryogenic system comprising a first cryogenic stage and a second cryogenic stage. A first signal line passing from the first cryogenic stage and is connected to a superconducting thermal break in the second cryogenic stage. A second signal line connecting the superconducting thermal break to a cryogenic device.
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公开(公告)号：US20230363294A1
公开(公告)日：2023-11-09
申请号：US17861151
申请日：2022-07-08
摘要： A cryogenic electronics device includes a semiconductor chip. A substrate is flip-chip bonded to the semiconductor chip. A plurality of bump bonds are concentrated in a bump region of the semiconductor chip. A plurality of circuit elements are arranged in a predefined region of the semiconductor chip. The predefined region and the bump region are separate regions.
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10.发明申请REDUCING SPONTANEOUS EMISSION IN CIRCUIT QUANTUM ELECTRODYNAMICS BY A COMBINED READOUT AND FILTER TECHNIQUE 有权通过组合式读数和滤波技术降低电路量子电动力学中的自发放电公开(公告)号：US20160329896A1
公开(公告)日：2016-11-10
申请号：US15218548
申请日：2016-07-25
IPC分类号： H03K19/003 , H03K19/195
CPC分类号： H03K19/00346 , B82Y10/00 , G06N99/002 , H03K19/195
摘要： A mechanism relates a superconductor circuit. A Δ circuit includes a first node connecting a Purcell capacitor to a qubit coupling capacitor, a second node connecting the Purcell capacitor to a readout coupling capacitor, and a third node connecting the qubit coupling capacitor to the readout coupling capacitor. A qubit is connected to the first node and has a qubit frequency. A readout resonator connects to the third node combining with the Purcell capacitor to form a filter. Capacitance of the Purcell capacitor is determined as a factor of the qubit frequency of the qubit and blocks emissions of the qubit at the qubit frequency. Capacitance of the Purcell capacitor causes destructive interference, between a first path containing Purcell capacitor and a second path containing both the qubit coupling capacitor and readout coupling capacitor, in order to block emissions of the qubit at the qubit frequency to the external environment.
摘要翻译： 一种机制涉及超导体电路。 Δ电路包括将Purcell电容器连接到量子位耦合电容器的第一节点，将Purcell电容器连接到读出耦合电容器的第二节点和将量子位耦合电容器连接到读出耦合电容器的第三节点。 量子位连接到第一个节点并具有量子位频率。 读出谐振器连接到与Purcell电容器组合的第三节点以形成滤波器。 Purcell电容的电容被确定为量子位的量子位频率的一个因素，并阻止量子比特的量子位发射。 Purcell电容的电容在包含Purcell电容器的第一路径和包含量子位耦合电容器和读出耦合电容器的第二路径之间产生相消干扰，以阻止量子位的量子位到量子位到外部环境的发射。
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