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1.发明申请公开(公告)号：US20220147857A1
公开(公告)日：2022-05-12
申请号：US17581850
申请日：2022-01-21
IPC: G06N10/20
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, M1 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.
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公开(公告)号：US20230325700A1
公开(公告)日：2023-10-12
申请号：US17983163
申请日：2022-11-08
Inventor： Lijing Jin , Yuao Chen
Abstract: Provided are a quantum chip structure, a determining method, a device and a storage medium, and relates to the field of computer technology, and in particular, to the field of quantum computation. The quantum chip structure includes: a ring structure composed of n center qubits, where two adjacent center qubits in the ring structure are connected through a coupler; and n is a natural number greater than or equal to 3; and two-linear structures drawn from a center qubit Qi toward outside of the ring structure; where a first linear structure in the two-linear structures contains ai first qubits; and a second linear structure in the two-linear structures contains bi second qubits. In this way, a quantum chip structure with high connectivity is obtained.
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公开(公告)号：US20220198315A1
公开(公告)日：2022-06-23
申请号：US17654150
申请日：2022-03-09
Abstract: The present disclosure provides a method for denoising a quantum device, and relates to the technical fields, such as quantum circuits, quantum algorithms, and quantum calibration. A specific implementation includes: acquiring a noise channel of an actual quantum device; determining a truncation coefficient based on the noise channel; 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 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 quantum state obtained through each applying stage of the first iteration.
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