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公开(公告)号：US20240204778A1
公开(公告)日：2024-06-20
申请号：US18288317
申请日：2021-06-01
申请人： IQM FINLAND OY
发明人： Juha HASSEL
IPC分类号： H03K17/92
CPC分类号： H03K17/92
摘要： A microwave power source comprises a Josephson junction or junction array and a resonant tank circuit coupled thereto and configured to resonate at one or more frequencies of Josephson oscillation. An output coupler is coupled to said resonant tank circuit for outputting microwave power from said resonant tank circuit. A bias circuit is coupled to the Josephson junction and configured to produce a bias voltage across the Josephson junction. Said bias circuit comprises a current path of variable resistance between a bias input of the microwave power source and a reference potential.
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公开(公告)号：US11966815B2
公开(公告)日：2024-04-23
申请号：US18515886
申请日：2023-11-21
发明人： Ye Li , Yewei Yuan , Menghan Dou
摘要： Disclosed are a method and an apparatus for constructing a quantum circuit corresponding to a linear function. The method includes: adding an independent variable of a target linear function on a first qubit; obtaining a second qubit for outputting the target linear function, adding a parametric quantum logic gate acting on the second qubit, and controlling the parametric quantum logic gate by using the first qubit; and determining a parameter value of the parametric quantum logic gate based on the target linear function, to obtain a quantum circuit corresponding to the target linear function.
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3.发明公开公开(公告)号：US20240119336A1
公开(公告)日：2024-04-11
申请号：US18489733
申请日：2023-10-18
发明人： Shengru REN , KaWai CHEN , Navid GHADERMARZY , Pooya RONAGH
摘要： The present disclosure may include methods, devices, and systems for constructing a routed circuit to allocate information qubits. The routed circuit may comprise at least one two-qubit gate and zero or more one-qubit gates on a quantum chip structure represented by a graph comprising vertices and edges.
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4.发明公开公开(公告)号：US20240095571A1
公开(公告)日：2024-03-21
申请号：US18515886
申请日：2023-11-21
发明人： Ye LI , Yewei YUAN , Menghan DOU
摘要： Disclosed are a method and an apparatus for constructing a quantum circuit corresponding to a linear function. The method includes: adding an independent variable of a target linear function on a first qubit; obtaining a second qubit for outputting the target linear function, adding a parametric quantum logic gate acting on the second qubit, and controlling the parametric quantum logic gate by using the first qubit; and determining a parameter value of the parametric quantum logic gate based on the target linear function, to obtain a quantum circuit corresponding to the target linear function.
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公开(公告)号：US11903331B2
公开(公告)日：2024-02-13
申请号：US17467188
申请日：2021-09-04
申请人： Koucheng Wu
发明人： Koucheng Wu
IPC分类号： H10N60/10 , H10N60/01 , H10N69/00 , H03K19/20 , H03K19/088 , H03K19/00 , H03K19/082 , H03K17/60 , H01L29/04 , H01L29/66 , H01L29/76 , H01L29/15 , H01L29/775 , H03K17/92 , H03K19/195
CPC分类号： H10N60/128 , H01L29/045 , H01L29/151 , H01L29/66439 , H01L29/66931 , H01L29/7606 , H01L29/775 , H03K17/60 , H03K17/92 , H03K19/001 , H03K19/082 , H03K19/088 , H03K19/195 , H03K19/20 , H10N60/0884 , H10N69/00
摘要： A digital circuit includes at least one quantum wire resonant tunneling transistor that includes an emitter terminal, a base terminal, a collector terminal, an emitter region in connection with the emitter terminal, a base region in connection with the base terminal, a collector region in connection with the collector terminal, an emitter barrier region between the emitter region and the base region, and a collector barrier region between the collector region and the base region. At least one of the emitter region, the base region, and the collector region includes a plurality of metal quantum wires.
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6.发明公开公开(公告)号：US20240046133A1
公开(公告)日：2024-02-08
申请号：US18258691
申请日：2022-05-27
CPC分类号： G06N10/40 , H03K17/92 , H01L31/035218
摘要： The present disclosure provides method and system, which use multiple of excitonic BEC(s) and/or excitonic matter-wave(s) and/or excitonic superfluid(s) as a platform to generate multiple (from a few to even millions or more) long-lived Qubits in any conceivable multi-dimensional hybrid nano structure(s), mostly using semiconductor material(s) and/or device structure(s) at any temperature in between 0-500K, and that can sustain any quantum coherence for a much longer time scales of microseconds or milliseconds or even more, but not limited to these time scales for any conceivable faster device operation(s) as well. The macroscopic quantum states of the generated Qubits are easily controllable with applied voltage(s) (dc and/or ac) and/or electrical power, and/or light beam(s), and are easily integrated with semiconductor fabrication techniques for quicker and wider adaptation of Quantum technologies.
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公开(公告)号：US20240039532A1
公开(公告)日：2024-02-01
申请号：US17816058
申请日：2022-07-29
发明人： Aaron Finck , Jiri Stehlik
摘要： Systems and techniques that facilitate mitigating stray-coupling via multi junction qubits are provided. In various embodiments, a device can comprise a first qubit having a plurality of Josephson junctions respectively between a plurality of capacitor pads. In various aspects, the device can further comprise a plurality of second qubits respectively coupled to different ones of the plurality of capacitor pads, such that no two of the plurality of second qubits can be coupled to a same one of the plurality of capacitor pads.
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公开(公告)号：US20240022236A1
公开(公告)日：2024-01-18
申请号：US18171943
申请日：2023-02-21
发明人： Noritsugu SHIOKAWA , Tamio KAWAGUCHI , Hayato GOTO , Taro KANAO , Yinghao HO
摘要： According to one embodiment, an electronic circuit includes a band-pass filter, first circuits, a first port, and a second port. The band-pass filter includes filter resonators. Two adjacent filter resonators included in the filter resonators are mutually couplable. Each of the first circuits includes a first qubit and a first readout resonator. The first readout resonator is couplable with the first qubit. One of the filter resonators is couplable with the first readout resonator of one of the first circuits. Another one of the filter resonators is couplable with the first readout resonator of another one of the first circuits. The filter resonators include first, second, and third filter resonators. The first filter resonator is couplable with the first port. The second filter resonator is couplable with the second port. The third filter resonator is between the first filter resonator and the second filter resonator.
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公开(公告)号：US20240013085A1
公开(公告)日：2024-01-11
申请号：US18172530
申请日：2023-02-22
发明人： Hayato GOTO , Yinghao HO , Noritsugu SHIOKAWA , Tamio KAWAGUCHI
摘要： According to one embodiment, an electronic circuit includes a first qubit, a second qubit, a first coupler, a first readout conductive member, and a first filter. The first coupler includes a first resonator and a second resonator. The first resonator is couplable with the first qubit. The second resonator is couplable with the second qubit. The first filter includes a first filter portion, a first other-filter portion, and a first readout portion. The first filter portion is couplable with the first resonator. The first other-filter portion is couplable with the second resonator. The first readout portion is couplable with the first readout conductive member.
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公开(公告)号：US11831291B2
公开(公告)日：2023-11-28
申请号：US17543095
申请日：2021-12-06
发明人： Matthew Beck
CPC分类号： H03H11/04 , H03K17/92 , H03H2011/0488
摘要： One or more systems, devices and/or methods of use provided herein relate to a device that can facilitate selective switching between band pass and band stop filter modes and/or can provide reflectionless or near reflectionless function. A device can comprise a filter circuit coupled between a pair of ports and comprising a direct current superconducting quantum interference device (DC SQUID), wherein the filter circuit is selectively activatable by varying the inductance of the DC SQUID. Applying flux bias to the DC SQUID can allow for the switching between the band pass and band stop filter modes.
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