Decoherence of Atomic Gases in Largely Detuned Laser Fields

Abstract

We study theoretically the decoherence of a gas of bosonic atoms induced by the interaction with a largely detuned laser beam. It is shown that for a standing laser beam decoherence coincides with the single-particle result. For a running laser beam many-particle effects lead to significant modifications.

5 pages, 2 Figures, RevTex

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