Non-ideal atom-light interfaces: modeling real-world effects

Details Non-ideal atom-light interfaces: modeling real-world effects Non-ideal atom-light interfaces: modeling real-world effects

2008-02-04

arxiv.org/abs/0802.0365v2

Physics

Quantum Physics

Scientific paper

We present a model which describes coherent and incoherent processes in continuous-variable atom-light interfaces. We assume Gaussian states for light and atoms and formulate the system dynamics in terms of first and second moments of the angular momentum operators. Spatial and temporal inhomogeneities in light and atom variables are incorporated by partitioning the system into small homogeneous segments. Furthermore, other experimental imperfections as for instance limited detector time-resolution and atomic motion are simulated. The model is capable of describing many experimental situations ranging from room temperature vapor cells to sub-mK atomic clouds. To illustrate the method, we calculate the effect of detector time-resolution, spatial inhomogeneities and atomic motion on the spin squeezing dynamics of rubidium 87 on the D2 transition.

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