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1.发明申请公开(公告)号：US20210192380A1
公开(公告)日：2021-06-24
申请号：US17022175
申请日：2020-09-16
Inventor： Lijing Jin , Runyao Duan
IPC: G06N10/00 , G06F13/20 , H03K3/38 , H03K19/195
Abstract: A superconducting circuit structure, a superconducting quantum chip, and a superconducting quantum computer are provided, which are related to a field of quantum computing. The specific implementation includes: a superconducting circuit structure, including: at least three computational qubits; a bus qubit connected to the respective computational qubits, wherein couplings between two of the computational qubits connected by the bus qubit are equivalent; and coupler qubits disposed between the respective computational qubits and the bus qubit, to connect the respective computational qubits to the bus qubits, wherein the coupler qubit is configured to regulate coupling strength between the computational qubit and the bus qubit. Couplings between any two computational qubits may be realized, so that an operation of a quantum gate between any two computational qubits is achieved, while crosstalk between computational qubits may be effectively suppressed.
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2.发明授权公开(公告)号：US11769069B2
公开(公告)日：2023-09-26
申请号：US17022175
申请日：2020-09-16
Inventor： Lijing Jin , Runyao Duan
IPC: H03K3/38 , G06N10/40 , G06F13/20 , H03K19/195
CPC classification number: G06N10/40 , G06F13/20 , H03K3/38 , H03K19/195
Abstract: A superconducting circuit structure, a superconducting quantum chip, and a superconducting quantum computer are provided, which are related to a field of quantum computing. The specific implementation includes: a superconducting circuit structure, including: at least three computational qubits; a bus qubit connected to the respective computational qubits, wherein couplings between two of the computational qubits connected by the bus qubit are equivalent; and coupler qubits disposed between the respective computational qubits and the bus qubit, to connect the respective computational qubits to the bus qubits, wherein the coupler qubit is configured to regulate coupling strength between the computational qubit and the bus qubit. Couplings between any two computational qubits may be realized, so that an operation of a quantum gate between any two computational qubits is achieved, while crosstalk between computational qubits may be effectively suppressed.
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Patent Agency Ranking
3.发明授权公开(公告)号：US11755940B2
公开(公告)日：2023-09-12
申请号：US17020527
申请日：2020-09-14
Inventor： Lijing Jin , Runyao Duan
Abstract: A superconducting circuit structure, a superconducting quantum chip, and a superconducting quantum computer are provided, which relate to the field of quantum computing. The superconducting circuit structure includes: at least two qubits; a connector, coupled with the two qubits respectively, to realize transversal coupling with each of the two qubits; and a coupler, coupled with the two qubits respectively, to realize longitudinal coupling with each of the two qubits. Therefore, the σzσz parasitic coupling between the qubits is effectively removed, and a two-qubit gate with high fidelity is obtained.
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公开(公告)号：US20210397772A1
公开(公告)日：2021-12-23
申请号：US17132929
申请日：2020-12-23
Inventor： Shusen Liu , Runyao Duan , Ningfeng Wang , Danxiang Wu
IPC: G06F30/3308 , G06N10/00
Abstract: A quantum circuit simulation method and device, an apparatus, and a storage medium are provided, which are related to a field of quantum simulation computation. The specific implementation is: obtaining, based on a quantum circuit containing n qubits, an n-order pure state corresponding to the quantum circuit; determining, based on the quantum circuit, a (k, k)-order gate tensor representing a quantum gate, on which a contraction processing is to be performed with the n-order state tensor; transforming the contraction processing between the n-order state tensor and the (k, k)-order gate tensor into a processing between matrices which can be expressed in a classic computer and reduce a computation amount in the classic computer, to obtain a processing result; and using the processing result as a result of the contraction processing between the n-order state tensor and the (k, k)-order gate tensor, to complete simulation of the quantum circuit.
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公开(公告)号：US11687819B2
公开(公告)日：2023-06-27
申请号：US17209031
申请日：2021-03-22
Inventor： Lijing Jin , Runyao Duan
CPC classification number: G06N10/00 , H10N60/12 , H10N60/805
Abstract: The present disclosure discloses a high-fidelity superconducting circuit structure, a superconducting quantum chip, and a superconducting quantum computer, which relate to the field of quantum computation. The specific implementation is as follows: computation qubits; a coupling device configured to be coupled with two computation qubits, respectively; a connecting component disposed between a computation qubit and the coupling device to couple the computation qubit with the coupling device, so as to implement a target quantum gate based on the coupling device and the computation qubit.
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公开(公告)号：US20210326737A1
公开(公告)日：2021-10-21
申请号：US17036352
申请日：2020-09-29
Inventor： Lijing Jin , Runyao Duan
Abstract: The present disclosure provides superconducting circuit architecture, a superconducting quantum chip, and a superconducting quantum computer including a plurality of coupling devices. The superconducting circuit architecture includes: a first qubit and a second qubit, and a first coupling device and a second coupling device. The first coupling device is coupled to the first qubit and the second qubit through a first connector, and the second coupling device is coupled to the first qubit and the second qubit through a second connector. The frequencies of the first qubit and the second qubit are between a frequency of the first coupling device and a frequency of the second coupling device, and a nonlinear strength of the first coupling device and a nonlinear strength of the second coupling device are opposite in sign.
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7.发明申请公开(公告)号：US20210110290A1
公开(公告)日：2021-04-15
申请号：US17020527
申请日：2020-09-14
Inventor： Lijing Jin , Runyao Duan
Abstract: A superconducting circuit structure, a superconducting quantum chip, and a superconducting quantum computer are provided, which relate to the field of quantum computing. The superconducting circuit structure includes: at least two qubits; a connector, coupled with the two qubits respectively, to realize transversal coupling with each of the two qubits; and a coupler, coupled with the two qubits respectively, to realize longitudinal coupling with each of the two qubits. Therefore, the σzσz parasitic coupling between the qubits is effectively removed, and a two-qubit gate with high fidelity is obtained.
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