A device-oriented optimizer for solving ground state problems on an approximate quantum computer, Part II: Experiments for interacting spin and molecular systems

ORAL

Abstract

Hybrid quantum-classical algorithms can be used to find variational solutions to generic quantum problems. Here, we present an experimental implementation of a device-oriented optimizer that uses superconducting quantum hardware. The experiment relies on feedback between the quantum device and classical optimization software which is robust to measurement noise. Our device-oriented approach uses naturally available interactions for the preparation of trial states. We demonstrate the application of this technique for solving interacting spin and molecular structure problems.

Authors

  • Abhinav Kandala

    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Antonio Mezzacapo

    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Kristan Temme

    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Sergey Bravyi

    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Maika Takita

    • IBM T.J. Watson Research Center
    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Jose Chavez-Garcia

    • IBM T J Watson Res Ctr
    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Antonio C\'orcoles

    • IBM T J Watson Res Ctr
    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • John Smolin

    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Jerry Chow

    • IBM
    • IBM T J Watson Research Center
    • IBM T J Watson Res Ctr
    • IBM TJ Watson Research Center
    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center
  • Jay Gambetta

    • IBM T J Watson Res Ctr
    • IBM T.J Watson Research Center
    • IBM T. J. Watson Research Center