Patents by Inventor Guang H. Low

Guang H. Low 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).

  • Quantum simulation of real time evolution of lattice Hamiltonians
    Patent number: 11132617
    Abstract: Embodiments of the disclosed technology concern a quantum circuit configured to implement a real time evolution unitary of a Hamiltonian in a quantum computing device, wherein a unit time evolution unitary operator is decomposed into overlapping smaller blocks of unitary operators. In some implementations, (a) the size of the overlap is proportional to the logarithm of a number of qubits in the simulated system, (b) the size of the overlap is proportional to the logarithm of a total simulated evolution time, and/or (c) the size of the overlap is proportional to a Lieb-Robinson velocity.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 28, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jeongwan Haah, Matthew B. Hastings, Robin Kothari, Guang H. Low
  • QUANTUM SIMULATION OF REAL TIME EVOLUTION OF LATTICE HAMILTONIANS
    Publication number: 20200143280
    Abstract: Embodiments of the disclosed technology concern a quantum circuit configured to implement a real time evolution unitary of a Hamiltonian in a quantum computing device, wherein a unit time evolution unitary operator is decomposed into overlapping smaller blocks of unitary operators. In some implementations, (a) the size of the overlap is proportional to the logarithm of a number of qubits in the simulated system, (b) the size of the overlap is proportional to the logarithm of a total simulated evolution time, and/or (c) the size of the overlap is proportional to a Lieb-Robinson velocity.
    Type: Application
    Filed: June 27, 2018
    Publication date: May 7, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Jeongwan Haah, Matthew B. Hastings, Robin Kothari, Guang H. Low