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公开(公告)号：AU2021240155A9
公开(公告)日：2022-10-06
申请号：AU2021240155
申请日：2021-09-28
Inventor： WANG XIN , JIN LIJING , LIU SHUSEN , MENG ZELIN , YAN ZIXIAN
IPC: G06N10/00
Abstract: The present disclosure provides a control pulse generation method, an apparatus, a system, a device and a storage medium, which are related to the field of quantum computing. The method is specifically implemented as follows: acquiring a system Hamiltonian; acquiring an initial control pulse of a quantum logic gate included in a parameterized quantum circuit to obtain an initial pulse sequence for a gate sequence formed for all the quantum logic gates in the parameterized quantum circuit, the initial control pulse being obtained through simulation based on the system Hamiltonian; acquiring system state information of the quantum system obtained after applying the initial pulse sequence to the target quantum hardware device; adjusting a parameter of the parameterized quantum circuit based on a relationship between the system state information and target state information needed to be achieved by the target quantum control task, to adjust a pulse parameter of the initial pulse sequence to obtain a target pulse sequence, wherein the target quantum control task can be achieved after the target pulse sequence is applied to the target quantum hardware device. (FIG. 1) - 1/9 Cd 4-. -o UQc Cd m-4 Cd -3 -4- u-..3 rJ d . - r. V 0 0 0 -0 -o0 4- c" >1 V- c).n. -4- -4. -4-.C cn 0 Cdo 0 1 >0 0
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2.发明专利
公开(公告)号：AU2022200187A1
公开(公告)日：2022-09-29
申请号：AU2022200187
申请日：2022-01-13
Abstract: Abstract A method includes: determining a maximum number Z of times for executing a measuring device continuously; operating the quantum computer to perform, for each integer k in a set {0, 1, ... , K} comprising Z integers, M 1 quantum computation processes to generate, for each quantum computation process, of the M1 quantum computation processes, an intermediate measurement result, wherein, in each quantum computation process, the quantum computer is operated to generate an n-qubit quantum state p, and continuously execute the measuring device for k + 1 times, so as to obtain the intermediate measurement result of the quantum computation process; operating a classical computer to compute an average measurement result of the M1 quantum computation processes; and operating the classical computer to determine, by means of Neumann series based on the average measurement result(s) corresponding to all the integers k, unbiased estimation of a computed result of eliminating quantum measurement noise. Drawings of the Description _ _Classicalbit P output Fig. 3 102401 1021 401 1021 Fig. 4 1021 Classical bit p* ~ output M Qubit output Fig. 5 _02 _ 1021 Fig. 6
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公开(公告)号：AU2021240156A1
公开(公告)日：2022-08-11
申请号：AU2021240156
申请日：2021-09-28
Inventor： JIN LIJING , WANG XIN , ZHANG RUNZE , MENG ZELIN
IPC: G06N10/00
Abstract: The present disclosure provides a quantum control pulse generation method and apparatus, a device, a storage medium, and a product, which are related to the field of quantum computation. The method is specifically implemented as follows: constructing, based on relevant physical parameters of a target quantum hardware structure, a system Hamiltonian of a quantum system characterized by the target quantum hardware structure; obtaining an initial control pulse set matching the target quantum hardware structure; obtaining, based on the system Hamiltonian, system state information of the quantum system by simulation, wherein the system state information characterizes state information of the quantum system obtained by simulation after an application of the initial control pulse to the qubit in the target quantum hardware structure; and optimizing the initial control pulse in the initial control pulse set based on at least a relationship between the system state information of the quantum system and target state information that needs to be achieved by the target quantum task, to obtain a target control pulse sequence by simulation. In this way, quantum computing software and quantum computing hardware are combined to achieve a specific quantum task. (FIG. 1) constructing, based on relevant physical parameters of a target quantum hardware structure, a system Hamiltonian of a quantum system characterized by the target quantum hardware structure, wherein the target quantum hardware structure is used to achieve a target quantum task obtaining an initial control pulse set matching the target quantum hardware structure, wherein the initial control pulse set comprises at least one initial control pulse used to be applied to a qubit in the target quantum hardware structure obtaining, based on the system Hamiltonian, system state information of the quantum system by simulation, wherein the system state information characterizes state information of the quantum system obtained by simulation after an application of the initial control pulse to the qubit in the target quantum hardware structure optimizing the initial control pulse in the initial control pulse set based on at least a relationship between the system state information of the quantum system and target state information that needs to be achieved by the target quantum task, to obtain a target control pulse sequence by simulation
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公开(公告)号：AU2021245165A1
公开(公告)日：2021-10-21
申请号：AU2021245165
申请日：2021-10-07
Inventor： WANG XIN , SONG ZHIXIN , LI GUANGXI
Abstract: The present disclosure discloses a method and device for processing quantum data, and relates to the field of quantum computation. It is specifically implemented as follows: determining a quantum data set and category information characterizing a data type of the quantum data set; applying a local quantum circuit to a quantum data point contained in the quantum data set, wherein the local quantum circuit is obtained after part of qubits are selected from a plurality of qubits contained in a parameterized quantum circuit; acquiring state information of qubits in the local quantum circuit after being applied to the quantum data point through measurement, and taking the state information and the category information as training data for training a classical neural network to obtain a trained classical neural network, wherein a data type of a quantum data set to be processed can be identified by the trained classical neural network. Therefore, a foundation is laid for identifying a data type of a quantum data set with high efficiency. (FIG. 1) determining a quantum data set and category information characterizing a data type of the quantum data set applying a local quantum circuit to a quantum data point contained in the quantum data set, wherein the local quantum circuit is obtained after part of qubits are selected from a plurality of qubits contained in a parameterized quantum circuit acquiring state information of qubits in the local quantum circuit after being applied to the quantum data point through measurement, and taking the state information and the category information as training data for training a classical neural network
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5.发明专利
公开(公告)号：AU2021245164A1
公开(公告)日：2021-10-21
申请号：AU2021245164
申请日：2021-10-07
Inventor： WANG XIN , ZHAO XUANQIANG , ZHAO BENCHI , WANG ZIHE , SONG ZHIXIN , LIU RENYU
Abstract: The present disclosure provides a quantum entangled state processing method and apparatus, a device, a storage medium, and a product, which are related to a field of quantum calculation. The specific implementation scheme includes: determining n initial quantum states to be processed; determining at least two nodes associated with the initial quantum state, wherein the first qubit is positioned at a first node of the at least two nodes, and the second qubit is positioned at a second node of the at least two nodes; acquiring at least one first parameterized quantum circuit required by the first node and at least one second parameterized quantum circuit required by the second node matched with a preset processing scenario; controlling, based on an initial quantum operation strategy, the first node to perform a local quantum operation to obtain a first measurement result, controlling the second node to perform a local quantum operation to obtain a second measurement result; obtaining an output quantum state meeting a preset requirement of the preset processing scenario at least based on the first measurement result and the second measurement result. In this way, the processing of a quantum entangled state is realized. (FIG. 1) determining n initial quantum states to be processed, wherein each initial quantum state is at least an entangled quantum state formed by at least one first qubit in a first group of qubits and at least one second qubit in a second group of qubits determining at least two nodes associated with the initial quantum state, wherein the first qubit is positioned at a first node of the at least two nodes, and the second qubit is positioned at a second node of the at least two nodes acquiring at least one first parameterized quantum circuit required by the first node and at least one second parameterized quantum circuit required by the second node matched with a preset processing scenario controlling, based on an initial quantum operation strategy, the first node to perform a local quantum operation on at least a portion of the first qubit in the first group of qubits by using the at least one first parameterized quantum circuit, to obtain a first measurement result S,- 105 controlling, based on the initial quantum operation strategy, the second node to perform a local quantum operation on at least a portion of the second qubit in the second group of qubits by using the at least one second parameterized quantum circuit, to obtain a second measurement result S-106 obtaining an output quantum state meeting a preset requirement of the preset processing scenario at least based on the first measurement result and the second measurement result, wherein the output quantum state is an entangled quantum state formed by qubits associated with at least one initial quantum state in the n initial quantum states after the initial quantum operation strategy is executed
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Patent Agency Ranking
公开(公告)号：AU2023274249A1
公开(公告)日：2024-10-10
申请号：AU2023274249
申请日：2023-12-05
Inventor： WANG XIN , ZHANG LEI , JING MINGRUI
Abstract: Provided is a method and apparatus for simulating nonlocal quantum operation, an electronic device, and a storage medium, relating to the field of quantum computing. The method includes: initializing a sampling coefficient set and first and second groups of quantum 5 operations, where the first group of quantum operations acts on a first quantum system, the second group of quantum operations acts on a second quantum system, and there is no communication between the first and second quantum systems; and optimizing the sampling coefficient set and the first and second groups of quantum operations by using a Semi-Definite Programming method, to obtain a quasi-probability factorization of a target nonlocal quantum 0 operation, the optimized first and second groups of quantum operations are used to construct a plurality of local quantum operations, the quasi-probability factorization is able to construct a simulation operation of the target nonlocal quantum operation. Initialize a sampling coefficient set, a first group of quantum operations and a second group of quantum operations, wherein the first group of quantum operations acts on a first quantum system, the second group of quantum operations acts on a second quantum system, and there is no communication between the first quantum system and the second quantum system Optimize the sampling coefficient set, the first group of quantum operations and the second group of quantum operations by using a Semi-Definite Programming method, to obtain a quasi-probability factorization of a target nonlocal quantum operation, wherein the optimized first group of quantum operations and the optimized second group of quantum operations are used to construct a plurality of local quantum operations, the quasi-probability factorization constructs a simulation operation of the target nonlocal quantum operation by adopting the plurality of local quantum operations and the optimized sampling coefficient set, and the quasi-probability factorization meets that a simulation error between the simulation operation and the target nonlocal quantum operation satisfies a simulation accuracy requirement min / ,Z k, Ek s.t. D( , JN)' T/, tr2 [IJEk IFakIA,V k{1 . p} -k OJEk 0V7{ ,..p
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公开(公告)号：AU2022235532A1
公开(公告)日：2023-09-07
申请号：AU2022235532
申请日：2022-09-20
Inventor： WANG XIN , ZHAO XUANQIANG , YU ZHAN
Abstract: Provided are a simulation method of quantum system, a computing device, an apparatus and a storage medium, relating to the field of data processing, and in particular to the field of quantum computing. The method includes: acquiring at least two measurement results; 5 calculating a loss value of a loss function representing an average trace distance; and taking, in the case where the loss value of the loss function satisfies an iteration requirement, a preset parameterized quantum circuit with an adjustable parameter at a first parameter value as a target parameterized quantum circuit. Acquire at least two measurement results, where first measurement result represents trace distance between first output state and first target output state; second measurement result represents trace distance between second output state and second target output state; first output state is output state after preset parameterized quantum circuit acts on first quantum state in the case where its own adjustable parameter is at first parameter S101 value, second output state is output state after preset parameterized quantum circuit acts on second quantum state in the case where its own adjustable parameter is at first parameter value, first target output state represents output state after initial time evolution circuit acts on first quantum state, second target output state represents output state after initial time evolution circuit acts on second quantum state, and initial time evolution circuit is approximate quantum circuit of unitary matrix of target quantum system containing n qubits Calculate loss value of loss function representing average trace distance based on trace distances represented by at least two measurement results Take, in the case where loss value of loss function satisfies iteration requirement, preset S103 parameterized quantum circuit with adjustable parameter at first parameter value as target parameterized quantum circuit, where target parameterized quantum circuit is approximate quantum circuit of initial time evolution circuit Fig. 1 Ql U3 (Oil,6 ,62)9(0) Q2 U, , ) Q3 U_(6__,1:6_! ) O1 Fig. 2
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公开(公告)号：AU2021240155A1
公开(公告)日：2022-08-11
申请号：AU2021240155
申请日：2021-09-28
Inventor： WANG XIN , JIN LIJING , LIU SHUSEN , MENG ZELIN , YAN ZIXIAN
IPC: G06N10/00
Abstract: A BLOCKING TOOL A blocking tool and a method of using the blocking tool to sand a surface of a vehicle are disclosed. The blocking tool includes a first member having a length and having an outer periphery with a plurality of cuts formed therein. The plurality of cuts extend over at least about 70% of the length and each of the cuts penetrates the first member through an arc of at least about 70% of the outer periphery. The blocking tool also has a base member with a first surface, an oppositely aligned second surface, and a length. A portion of the outer periphery of the first member is secured to the first surface of the base member to form an integral blocking tool. 22 -3-4 -1-810 --- 30 38 34-),88 Fig. 1 £/10 t3 w 3 Fig. 2
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9.发明专利
公开(公告)号：AU2021258068A1
公开(公告)日：2022-06-16
申请号：AU2021258068
申请日：2021-10-29
Inventor： JIN LIJING , WANG XIN , MENG ZELIN
Abstract: The present application discloses a simulation method in quantum control, which is related to a field of quantum control. The specific implementation scheme is: acquiring a hardware parameter corresponding to a quantum system and a target quantum gate required to be realized by the quantum system; acquiring a pulse function represented on the basis of discrete time slices; determining target step sizes corresponding to the discrete time slices in the pulse function, to obtain pulse parameter values within time durations according to the target step sizes corresponding to the time slices and the pulse function; and obtaining simulation quantum gates within the time durations corresponding to the target step sizes on the basis of obtained pulse parameter values within the time durations corresponding to the target step sizes and the hardware parameter of the quantum system, until obtaining a target simulation quantum gate within a preset pulse time duration, in this way, a target simulation quantum gate with an error with the target quantum gate meeting a preset rule is rapidly obtained. (FIG. 1) acquiring a hardware parameter corresponding to a quantum system and a target quantum gate required to be realized by the quantum system acquiring a pulse function represented on the basis of discrete time slices, wherein pulse parameter values within a time period from start time to end time of a time slice are the same determining target step sizes corresponding to the discrete time slices in the pulse function, to obtain pulse parameter values within time durations corresponding to the target step sizes according to the target step sizes corresponding to the time slices and the pulse function obtaining simulation quantum gates within the time durations corresponding to the target step sizes on the basis of obtained pulse parameter values within the time durations corresponding to the target step sizes and the hardware parameter of the quantum system, until obtaining a target simulation quantum gate within a preset pulse time duration
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10.发明专利
公开(公告)号：AU2022201682A1
公开(公告)日：2022-03-31
申请号：AU2022201682
申请日：2022-03-10
IPC: G06N10/00
Abstract: The present disclosure provides a method for denoising a quantum device and an apparatus for denoising a quantum device, and relates to the technical fields, such as quantum circuits, 5 quantum algorithms, and quantum calibration. A specific implementation scheme includes: acquiring a noise channel of an actual quantum device; determining a truncation coefficient based on the noise channel, the truncation coefficient being used for characterizing the number of expanded items of a 10 Neumann series of the noise channel at a current error tolerance; running the actual quantum device to generate an intermediate quantum state; performing a first iteration of applying the noise channel to the intermediate quantum state for the number of times, the number being equal to a value of the truncation 15 coefficient, each applying stage of the first iteration being performed based on a result of a previous applying stage of the first iteration; and computing a zero-noise expected value of an ideal quantum device corresponding to the actual quantum device based on the intermediate quantum state and a resultant 20 quantum state obtained through each applying stage of the first iteration. This embodiment realizes the denoising of a quantum circuit.
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