Patents by Inventor Yuao CHEN

Yuao CHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220229757
    Abstract: A method includes: obtaining a set of characterizing equations for a quantum gate to be benchmarked; in response to the set of characterizing equations including another quantum gate, determining whether the another quantum gate has been benchmarked as trusted; in response to the another quantum gate having been benchmarked as trusted, successively performing a quantum gate operation on each characterizing equation in the set of characterizing equations to obtain, for each characterizing equation, a corresponding measurement result; for each characterizing equation, determining whether the measurement result for the characterizing equation meets an expected result in the characterizing equation for characterization; and in response to the measurement results for each characterizing equation in the set of characterizing equations meeting the expected result, benchmarking the quantum gate to be benchmarked as trusted.
    Type: Application
    Filed: April 4, 2022
    Publication date: July 21, 2022
    Inventors: Yuao CHEN, Shusen LIU, Ningfeng WANG
  • Publication number: 20220198315
    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.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Kun Wang, Yuao Chen, Xin Wang
  • Publication number: 20220147857
    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.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Kun Wang, Yuao Chen, Xin Wang
  • Publication number: 20220131707
    Abstract: A digital signature method, a signature information verification method, a related apparatus and an electronic device are provided. The digital signature method includes: obtaining a to-be-sent file and a private key used by a first electronic device for digital signature, the private key including a first invertible matrix; generating L second tensors based on the first invertible matrix and a first tensor, the L second tensors including the first tensor and a tensor isomorphic to the first tensor; digitally signing the to-be-sent file based on a second invertible matrix and the first tensor, to obtain a first character string; constructing a hash value of a root node of a hash tree based on the L second tensors; generating signature information of the to-be-sent file based on the first character string, the first invertible matrix, the second invertible matrix, the L second tensors and the hash value of the root node.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventors: Yuao CHEN, Runyao DUAN, Lijing JIN
  • Publication number: 20210377048
    Abstract: This application discloses a digital signature method, a signature information verification method, a related apparatus and an electronic device, and relates to the field of information security in quantum computing. The digital signature method includes: acquiring a to-be-sent file and a private key used by a first electronic device for digital signature, where the private key includes a first invertible matrix; generating, based on a randomly generated second invertible matrix and a first tensor, a second tensor isomorphic to the first tensor; using a hash function to digitally sign the to-be-sent file based on the second tensor, to obtain a first character string; generating, based on the first character string, the first invertible matrix and the second invertible matrix, signature information provided by the first electronic device for the to-be-sent file.
    Type: Application
    Filed: July 2, 2021
    Publication date: December 2, 2021
    Inventors: Yuao CHEN, Runyao DUAN, Lijing JIN