Tuesday, July 30, 2013

1307.7367 (Hongting Song et al.)

Multi-photon filtering    [PDF]

Hongting Song, Guofeng Zhang, Zairong Xi
The purpose of this paper is to derive the filtering equations for quantum systems driven by fields in a multi-photon state. The joined dynamics of the system and filed are described by quantum stochastic differential equations. With the help of a non-Markovian embedding method, quantum filters with quadrature (homodyne) or photon counting (photodetection) measurements are derived, which are given in terms of systems of coupled equations. A two-level atom example is used to illustrate interesting features of the multi-photon quantum filtering.
View original: http://arxiv.org/abs/1307.7367

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