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公开(公告)号：US10693566B2
公开(公告)日：2020-06-23
申请号：US15567198
申请日：2016-04-15
申请人： Yale University
发明人： Katrina Sliwa , Michael Hatridge , Anirudh Narla , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
IPC分类号： H04B10/90 , G06N99/00 , H04B10/70 , H01L27/18 , H03D7/00 , H01L39/02 , H01L39/04 , H01L39/22 , H01P3/12 , H03F19/00 , H03D9/06 , H01P5/08 , G06N10/00 , H01P5/02 , H01P5/103
摘要： A wireless Josephson-junction-based parametric converter is described. The converter may be formed on a substrate with antennas that pump are configured to wirelessly receive pump, signal and idler frequencies and couple the received frequencies to the converter's circuitry. Capacitors may also be fabricated on the same substrate and sized to tune operation of the converter to desired frequencies. The converter may be coupled directly to microwave waveguides, and may be tuned to different signal frequencies by applying magnetic flux to the converter circuitry.
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公开(公告)号：US20210258010A9
公开(公告)日：2021-08-19
申请号：US16711002
申请日：2019-12-11
申请人： Yale University
发明人： W. Clarke Smith , Jayameenakshi Venkatraman , Xu Xiao , Lucas Verney , Luigi Frunzio , Shyam Shankar , Mazyar Mirrahimi , Michel Devoret
摘要： Techniques for modifying the Josephson potential of a transmon qubit by shunting the transmon with an inductance are described. The inclusion of this inductance may increase the confined potential of the qubit system compared with the conventional transmon, which may lead to a transmon qubit that is stable at much higher drive energies. The inductive shunt may serve the purpose of blocking some or all phase-slips between the electrodes of the qubit. As a result, the inductively shunted transmon may offer an advantage over conventional devices when used for applications involving high energy drives, whilst offering few to no drawbacks in comparison to conventional devices when used at lower drive energies.
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公开(公告)号：US20200287540A1
公开(公告)日：2020-09-10
申请号：US16711002
申请日：2019-12-11
申请人： Yale University
发明人： W. Clarke Smith , Jayameenakshi Venkatraman , Xu Xiao , Lucas Verney , Luigi Frunzio , Shyam Shankar , Mazyar Mirrahimi , Michel Devoret
摘要： Techniques for modifying the Josephson potential of a transmon qubit by shunting the transmon with an inductance are described. The inclusion of this inductance may increase the confined potential of the qubit system compared with the conventional transmon, which may lead to a transmon qubit that is stable at much higher drive energies. The inductive shunt may serve the purpose of blocking some or all phase-slips between the electrodes of the qubit. As a result, the inductively shunted transmon may offer an advantage over conventional devices when used for applications involving high energy drives, whilst offering few to no drawbacks in comparison to conventional devices when used at lower drive energies.
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公开(公告)号：US11271533B2
公开(公告)日：2022-03-08
申请号：US15914995
申请日：2018-03-07
申请人： Yale University
发明人： Anirudh Narla , Katrina Sliwa , Michael Hatridge , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
IPC分类号： H03F19/00
摘要： A wireless Josephson-junction-based amplifier is described that provides improved tunability and increased control over both a quality factor Q and participation ratio p of the amplifier. The device may be fabricated on a chip and mounted in a waveguide. No wire bonding between the amplifier and coaxial cables or a printed circuit board is needed. At least one antenna on the chip may be used to couple energy between the waveguide and wireless JBA. The amplifier is capable of gains greater than 25 dB.
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公开(公告)号：US10461385B2
公开(公告)日：2019-10-29
申请号：US15553041
申请日：2016-02-26
申请人： Yale University
发明人： Katrina Sliwa , Michael Hatridge , Anirudh Narla , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
摘要： According to some aspects, a circuit is provided comprising a plurality of Josephson junctions arranged in series in a loop, at least one magnetic element producing magnetic flux through the loop, a plurality of superconducting resonators, each resonator coupled to the loop between a different neighboring pair of Josephson junctions of the plurality of Josephson junctions, a plurality of ports, each port coupled to at least one of the plurality of resonators at ends of the resonators opposite to ends at which the resonators are coupled to the loop, and at least one controller configured to provide input energy to each of the plurality of ports that causes the circuit to function as a circulator between the plurality of ports.
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公开(公告)号：US20180138987A1
公开(公告)日：2018-05-17
申请号：US15567198
申请日：2016-04-15
申请人： Yale University
发明人： Katrina Sliwa , Michael Hatridge , Anirudh Narla , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
IPC分类号： H04B10/90 , H01L27/18 , H01L39/02 , H01L39/04 , H01L39/22 , H01P3/12 , H03F19/00 , G06N99/00
CPC分类号： H04B10/90 , G06N10/00 , H01L27/18 , H01L39/025 , H01L39/045 , H01L39/223 , H01P3/12 , H01P5/024 , H01P5/08 , H01P5/103 , H03D7/005 , H03D2009/0691 , H03F19/00 , H04B10/70
摘要： A wireless Josephson-junction-based parametric converter is described. The converter may be formed on a substrate with antennas that pump are configured to wirelessly receive pump, signal and idler frequencies and couple the received frequencies to the converter's circuitry. Capacitors may also be fabricated on the same substrate and sized to tune operation of the converter to desired frequencies. The converter may be coupled directly to microwave waveguides, and may be tuned to different signal frequencies by applying magnetic flux to the converter circuitry.
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公开(公告)号：US20180054165A1
公开(公告)日：2018-02-22
申请号：US15553030
申请日：2016-02-26
申请人： Yale University
发明人： László J. Szöcs , Anirudh Narla , Michael Hatridge , Katrina Sliwa , Shyam Shankar , Luigi Frunzio , Michel Devoret
CPC分类号： H03F1/02 , G06N10/00 , H01L39/223 , H03F7/02 , H03F7/04 , H03F19/00 , H03K19/195
摘要： According to some aspects, a quantum circuit is provided including a plurality of non-linear circuit elements coupled together in series and in parallel, such that at least two of the circuit elements are coupled together in series and at least two of the circuit elements are coupled together in parallel, wherein the quantum circuit is configured to act as an amplifier.
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公开(公告)号：US10404214B2
公开(公告)日：2019-09-03
申请号：US15553030
申请日：2016-02-26
申请人： Yale University
发明人： László J. Szöcs , Anirudh Narla , Michael Hatridge , Katrina Sliwa , Shyam Shankar , Luigi Frunzio , Michel Devoret
摘要： According to some aspects, a quantum circuit is provided including a plurality of non-linear circuit elements coupled together in series and in parallel, such that at least two of the circuit elements are coupled together in series and at least two of the circuit elements are coupled together in parallel, wherein the quantum circuit is configured to act as an amplifier.
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公开(公告)号：US20180198427A1
公开(公告)日：2018-07-12
申请号：US15914995
申请日：2018-03-07
申请人： Yale University
发明人： Anirudh Narla , Katrina Sliwa , Michael Hatridge , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
IPC分类号： H03F19/00
CPC分类号： H03F19/00
摘要： A wireless Josephson-junction-based amplifier is described that provides improved tunability and increased control over both a quality factor Q and participation ratio p of the amplifier. The device may be fabricated on a chip and mounted in a waveguide. No wire bonding between the amplifier and coaxial cables or a printed circuit board is needed. At least one antenna on the chip may be used to couple energy between the waveguide and wireless JBA. The amplifier is capable of gains greater than 25 dB.
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公开(公告)号：US09948254B2
公开(公告)日：2018-04-17
申请号：US14628107
申请日：2015-02-20
申请人： Yale University
发明人： Anirudh Narla , Katrina Sliwa , Michael Hatridge , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
IPC分类号： H03F19/00
CPC分类号： H03F19/00
摘要： A wireless Josephson-junction-based amplifier is described that provides improved tunability and increased control over both a quality factor Q and participation ratio p of the amplifier. The device may be fabricated on a chip and mounted in a waveguide. No wire bonding between the amplifier and coaxial cables or a printed circuit board is needed. At least one antenna on the chip may be used to couple energy between the waveguide and wireless JBA. The amplifier is capable of gains greater than 25 dB.
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