Stabilization and feedback control of weak measurement monitored quantum oscillators

POSTER

Abstract

We study feedback control of quantum oscillators, monitored through periodic weak measurement. By implementing reversals of measurement perturbations based on a Bayesian estimate of the state dynamics, we demonstrate suppressed measurement noise leading to greater oscillator stability and improved quantum feedback control.

*The work in this paper was supported in part by the National Research Foundation of South Africa through grant no.~93602 as well as an award by the United States Airforce Office of Scientific Research, award no.~FA9550-14-1-0151

Authors

  • Hermann Uys

    • CSIR/Stellenbosch University, Stellenbosch, South Africa

  • Pieter du Toit

    • National Metrological Institute of South Africa, Pretoria, South Africa

  • Shaun Burd

    • NIST/Colorado University, Boulder, Colorado, USA

  • Thomas Konrad

    • University of KwaZulu-Natal, Durban, South Africa