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arXiv · 1207.1196

Filtering equation for a measurement of a coherent channel

A. Dabrowska·P. Staszewski
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Abstract

A stochastic model for a continuous photon counting and heterodyne measurement of a coherent source is proposed. A nonlinear filtering equation for the posterior state of a single-mode field in a cavity is derived by using the methods of quantum stochastic calculus. The posterior dynamics is found for the observation of a Bose field being initially in a coherent state. The filtering equations for counting and diffusion processes are given.

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A. Dabrowska, P. Staszewski. 2012-07-05. Filtering equation for a measurement of a coherent channel. https://doi.org/10.1364/josab.28.001238

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