Patents by Inventor Anirban CH NARAYAN CHOWDHURY

Anirban CH NARAYAN CHOWDHURY 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).

  • Variational quantum Gibbs state preparation
    Patent number: 11640549
    Abstract: Methods for preparing a Gibbs state in a qubit register of a quantum computer include applying one or more quantum gates to one or more qubits of the qubit register to prepare a trial quantum state spanning the one or more qubits, the trial quantum state being defined as a function of parameters {right arrow over (?)} and being selected to provide an initial estimate of the Gibbs state. The methods further include evaluating the Gibbs free energy of the trial quantum state, adjusting the parameters {right arrow over (?)}, re-applying the one or more quantum gates to the one or more qubits to refine the trial quantum state according to the parameters {right arrow over (?)} as adjusted, and re-evaluating the Gibbs free energy of the trial quantum state.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: May 2, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Guang Hao Low, Nathan O. Wiebe, Anirban Ch Narayan Chowdhury
  • VARIATIONAL QUANTUM GIBBS STATE PREPARATION
    Publication number: 20200349457
    Abstract: Methods for preparing a Gibbs state in a qubit register of a quantum computer include applying one or more quantum gates to one or more qubits of the qubit register to prepare a trial quantum state spanning the one or more qubits, the trial quantum state being defined as a function of parameters {right arrow over (?)} and being selected to provide an initial estimate of the Gibbs state. The methods further include evaluating the Gibbs free energy of the trial quantum state, adjusting the parameters {right arrow over (?)}, re-applying the one or more quantum gates to the one or more qubits to refine the trial quantum state according to the parameters {right arrow over (?)} as adjusted, and re-evaluating the Gibbs free energy of the trial quantum state.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 5, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Guang Hao LOW, Nathan O. WIEBE, Anirban CH NARAYAN CHOWDHURY