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Quantum filtering for multiple measurements driven by fields in single-photon states

Research paper by Zhiyuan Dong, Guofeng Zhang, Nina H. Amini

Indexed on: 26 Nov '15Published on: 26 Nov '15Published in: Quantum Physics



Abstract

In this paper, we derive the stochastic master equations for quantum systems driven by a single-photon input state which is contaminated by quantum vacuum noise. To improve estimation performance, quantum filters based on multiple-channel measurements are designed. Two cases, namely diffusive plus Poissonian measurements and two diffusive measurements, are considered.