Time-reversibility in Quantum Feedback Protocols

ORAL

Abstract

In open quantum systems, measurements by a probe or the environment cause backaction. While these interactions do not necessarily break time-reversal symmetry, a statistical arrow of time emerges due to the correlations between the quantum state and the measurement. Quantum feedback protocols utilize rotations to correct for quantum backaction, effectively closing the system evolution. We study time reversibility of state stabilization by examining the effectiveness of time-reversed versus time-ordered feedback protocols. We also investigate the effect of finite efficiency detection in these state stabilization protocols.

*This work was supported by John Templeton Foundation grant ID 58558, the ONR No. 12114811, and NSF grant DMR-150608.

–

Presenters

  • Jonathan Monroe

    • Physics, Washington University in St. Louis

Authors

  • Jonathan Monroe

    • Physics, Washington University in St. Louis

  • Mahdi Naghiloo

    • Physics, Washington University in St. Louis

  • Kater Murch

    • Physics, Washington University in St. Louis
    • Washington University in St. Louis
    • Univ of California - Berkeley

  • Sreenath Kizhakkumpurath Manikandan

    • Department of physics and astronomy, Univ of Rochester
    • Physics and Astronomy, University of Roshester

  • Andrew Jordan

    • University of Rochester
    • Department of Physics and Astronomy, Univ of Rochester
    • Department of Physics and Astromony, University of Rochester
    • Univ of Rochester
    • Department of physics and astronomy, Univ of Rochester
    • Physics and Astronomy, University of Roshester
    • Physics, Univ of Rochester