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公开(公告)号：US20220148417A1
公开(公告)日：2022-05-12
申请号：US17563774
申请日：2021-12-28
Inventor： Xing Hu , Haiyong Zhang , Siyi Zheng , Kun Wang , Jialin Yang , Geng Li , Miaohan Qiu , Heming Zhao
Abstract: A roadside service unit, a traffic prompt device, a traffic prompt system and a traffic prompt method, relating to a field of computer technology, in particular to a field of vehicle networking and intelligent transportation technologies. The roadside service unit includes: a roadside acquisition device configured to provide traffic data; a roadside computing device communicatively connected with the roadside acquisition device, and configured to generate traffic prompt information according to the traffic data provided by the roadside acquisition device; and a roadside communication device communicatively connected with the roadside computing device, and configured to send the traffic prompt information generated by the roadside computing device to a preset area.
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2.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：US20230119682A1
公开(公告)日：2023-04-20
申请号：US17954245
申请日：2022-09-27
Inventor： Kun Wang
IPC: G06N10/20
Abstract: A method is provided. The method includes: preparing one or more standard basis quantum states denoted by |y >, and for each of the standard basis quantum states, repeatedly operating a measurement device a predetermined number of times to perform measurements on that the each standard basis quantum state; counting the predetermined number of measurement results, of each of the standard basis quantum states, to construct a calibration matrix; determining the number of zero elements of each column in the calibration matrix; determining a correction coefficient corresponding to each column based on the number of zero elements, where the correction coefficient is inversely proportional to the number of zero elements; and constructing a new calibration matrix based on the correction coefficient corresponding to the each column, to correct a measurement result of the measurement device based on the new calibration matrix.
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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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