Patents by Inventor Sergei V. Isakov

Sergei V. Isakov 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).

  • FIDELITY ESTIMATION FOR QUANTUM COMPUTING SYSTEMS
    Publication number: 20220138610
    Abstract: Methods and apparatus for estimating the fidelity of quantum hardware. In one aspect, a method includes accessing a set of quantum gates; sampling a subset of quantum gates from the set of quantum gates, wherein the subset of quantum gates defines a quantum circuit; applying the quantum circuit to a quantum system and performing measurements on the quantum system to determine output information of the quantum system; calculating output information of the quantum system based on application of the quantum circuit to the quantum system; and estimating a fidelity of the quantum circuit based on the determined output information and the calculated output information of the quantum system.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventors: John Martinis, Nan Ding, Ryan Babbush, Sergei V. Isakov, Hartmut Neven, Vadim Smelyanskiy, Sergio Boixo Castrillo
  • Fidelity estimation for quantum computing systems
    Patent number: 11244240
    Abstract: Methods and apparatus for estimating the fidelity of quantum hardware. In one aspect, a method includes accessing a set of quantum gates; sampling a subset of quantum gates from the set of quantum gates, wherein the subset of quantum gates defines a quantum circuit; applying the quantum circuit to a quantum system and performing measurements on the quantum system to determine output information of the quantum system; calculating output information of the quantum system based on application of the quantum circuit to the quantum system; and estimating a fidelity of the quantum circuit based on the determined output information and the calculated output information of the quantum system.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: February 8, 2022
    Assignee: Google LLC
    Inventors: John Martinis, Nan Ding, Ryan Babbush, Sergei V. Isakov, Hartmut Neven, Vadim Smelyanskiy, Sergio Boixo Castrillo
  • FIDELITY ESTIMATION FOR QUANTUM COMPUTING SYSTEMS
    Publication number: 20190156239
    Abstract: Methods and apparatus for estimating the fidelity of quantum hardware. In one aspect, a method includes accessing a set of quantum gates; sampling a subset of quantum gates from the set of quantum gates, wherein the subset of quantum gates defines a quantum circuit; applying the quantum circuit to a quantum system and performing measurements on the quantum system to determine output information of the quantum system; calculating output information of the quantum system based on application of the quantum circuit to the quantum system; and estimating a fidelity of the quantum circuit based on the determined output information and the calculated output information of the quantum system.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 23, 2019
    Inventors: John Martinis, Nan Ding, Ryan Babbush, Sergei V. Isakov, Hartmut Neven, Vadim Smelyanskiy, Sergio Boixo Castrillo