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公开(公告)号：US20240070502A1
公开(公告)日：2024-02-29
申请号：US18077520
申请日：2022-12-08
申请人： ANYON SYSTEMS INC.
摘要： There is described a method for performing a two-qubit gate. The method comprises coupling a first qubit to a second qubit, and coupling a third qubit to the first qubit and to the second qubit, wherein the third qubit is a coupler. A drive signal is applied to the coupler to perform the two-qubit gate on the first qubit and the second qubit by driving the coupler, the drive signal creating coupling between eigenstates of a Hamiltonian of the coupler.
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公开(公告)号：US20220393092A1
公开(公告)日：2022-12-08
申请号：US17828358
申请日：2022-05-31
申请人： ANYON SYSTEMS INC.
发明人： Alireza NAJAFI-YAZDI
IPC分类号： H01L39/24
摘要： There is described herein a method for fabricating a tunnel junction. The method comprises coating a substrate with an inorganic resist layer and forming support pillars in the resist layer; fabricating a mask on the resist layer from a first inorganic material, the mask having at least one opening; removing the resist layer from beneath the mask, leaving behind the support pillars supporting the mask above the substrate; performing shadow evaporation on the substrate through the at least one opening of the mask to form the tunnel junction on the substrate; and removing the mask and the support pillars from the substrate.
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公开(公告)号：US20220188685A1
公开(公告)日：2022-06-16
申请号：US17499925
申请日：2021-10-13
申请人： ANYON SYSTEMS INC.
发明人： Alireza Najafi-Yazdi
IPC分类号： G06N10/00
摘要： There is described herein a quantum computing system, quantum processor, and method of operating a quantum computing system. The quantum computing system comprises a quantum control system configured for at least one of delivery and receipt of multiplexed optical signals. At least one optical fiber is coupled to the quantum control system for carrying the multiplexed optical signals, and a quantum processor is disposed inside a cryogenics apparatus and coupled to the at least one optical fiber. The quantum processor comprises: at least one converter configured for converting between the multiplexed optical signals and microwave signals at different frequencies; and a plurality of solid-state quantum circuit elements coupled to the at least one converter and addressable by respective ones of the microwave signals at different frequencies.
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公开(公告)号：US11892868B2
公开(公告)日：2024-02-06
申请号：US17893607
申请日：2022-08-23
申请人： ANYON SYSTEMS INC.
发明人： Alireza Najafi-Yazdi
摘要： There is described herein a quantum computing system comprising a quantum control system configured for generating microwave signals up-converted to optical frequencies, at least one optical fiber coupled to the quantum control system for carrying the up-converted microwave signals, and a quantum processor disposed inside a cryogenics apparatus and coupled to the at least one optical fiber for receipt of the up-converted microwave signals. The quantum processor comprises at least one optical-to-microwave converter configured for down-converting the up-converted microwave signals, and a plurality of solid-state quantum circuit elements coupled to the at least one optical-to-microwave converter and addressable by respective ones of the down-converted microwave signals.
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公开(公告)号：US11695418B2
公开(公告)日：2023-07-04
申请号：US17830846
申请日：2022-06-02
申请人： ANYON SYSTEMS INC.
摘要： There is described herein a topologically protected quantum circuit with superconducting qubits and method of operation thereof. The circuit comprises a plurality of physical superconducting qubits and a plurality of coupling devices interleaved between pairs of the physical superconducting qubits. The coupling devices comprise at least one φ-Josephson junction, wherein a Josephson phase φ0 of the φ-Josephson junction is non-zero in a ground state, the coupling devices have a Josephson energy EJφ, the physical superconducting qubits have a Josephson energy EJq, and the circuit operates in a topological regime when
E
J
q
2
>
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E
J
φ
cos
φ
0
>
E
J
q
3
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公开(公告)号：US20200280317A1
公开(公告)日：2020-09-03
申请号：US16805047
申请日：2020-02-28
申请人： ANYON SYSTEMS INC.
IPC分类号： H03K19/195 , G06N10/00 , G11C11/44
摘要： There is described a microwave device and methods of operating same. The device comprises at least one superconducting qubit coupled to a transmission line defining a first port, and a filter. The filter comprises a first resonant element having a first resonance frequency f1, positioned along the transmission line between the first port and the qubit, and a second resonant element having a second resonance frequency f2 different from f1 and positioned along the transmission line between the first resonant element and the qubit.
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公开(公告)号：US20230135323A1
公开(公告)日：2023-05-04
申请号：US18051992
申请日：2022-11-02
申请人： ANYON SYSTEMS INC.
IPC分类号： F25J1/00
摘要： A dilution refrigerator, such as for a quantum computing system, includes a cryostat having a plurality of temperature-controlled flanges inside a vacuum chamber. A dilution unit is disposed inside the cryostat and operable to cool a first group of the flanges. A continuous flow helium refrigerator is in heat transfer communication with a lowest temperature flange of a second group of flanges, disposed at progressively lower temperatures that are greater than those of the first group of flanges, to provide primary cooling thereto to a first temperature. The continuous flow helium refrigerator resides at least partially in the cryostat and includes a helium liquefier and a first closed-loop circuit thermally coupling the helium liquefier to the lowest temperature flange of the second group of flanges. The helium liquefier provides liquid helium to the lowest temperature flange of the second group of flanges via the first closed-loop circuit.
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公开(公告)号：US11460877B2
公开(公告)日：2022-10-04
申请号：US17499925
申请日：2021-10-13
申请人： ANYON SYSTEMS INC.
发明人： Alireza Najafi-Yazdi
摘要： There is described herein a quantum computing system, quantum processor, and method of operating a quantum computing system. The quantum computing system comprises a quantum control system configured for at least one of delivery and receipt of multiplexed optical signals. At least one optical fiber is coupled to the quantum control system for carrying the multiplexed optical signals, and a quantum processor is disposed inside a cryogenics apparatus and coupled to the at least one optical fiber. The quantum processor comprises: at least one converter configured for converting between the multiplexed optical signals and microwave signals at different frequencies; and a plurality of solid-state quantum circuit elements coupled to the at least one converter and addressable by respective ones of the microwave signals at different frequencies.
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公开(公告)号：US20220399890A1
公开(公告)日：2022-12-15
申请号：US17830846
申请日：2022-06-02
申请人： ANYON SYSTEMS INC.
摘要： There is described herein a topologically protected quantum circuit with superconducting qubits and method of operation thereof. The circuit comprises a plurality of physical superconducting qubits and a plurality of coupling devices interleaved between pairs of the physical superconducting qubits. The coupling devices comprise at least one φ-Josephson junction, wherein a Josephson phase φ0 of the φ-Josephson junction is non-zero in a ground state, the coupling devices have a Josephson energy EJφ, the physical superconducting qubits have a Josephson energy EJq, and the circuit operates in a topological regime when E J q 2 > - E J φ cos φ 0 > E J q 3 .
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公开(公告)号：US11480299B1
公开(公告)日：2022-10-25
申请号：US17701540
申请日：2022-03-22
申请人： ANYON SYSTEMS INC.
摘要： A cryostat, such as for a quantum computing system, includes a plurality of temperature-controlled flanges operable to be cooled to respective cryogenic target temperatures, the temperature-controlled flanges being nested one inside another and concentrically arranged about a central axis. The temperature-controlled flanges are radially spaced apart and define closed polygonal perimeters. The temperature-controlled flanges including an outermost flange defining a vacuum chamber, an innermost flange enclosing a central core of the cryostat, and intermediate flanges radially located between the innermost flange and the outermost flange. Each of the intermediate flanges surrounds one or more of the other temperature-controlled flanges. The outermost flange is maintained at a highest temperature, the innermost flange is maintained at a lowest temperature, and the intermediate flanges are maintained at respective intermediate temperatures less than the highest temperature and greater than the lowest temperature.
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