Physics – Mathematical Physics
Scientific paper
2004-10-14
Physics
Mathematical Physics
Scientific paper
10.1088/0305-4470/37/28/L03
We study the effect of electromagnetic radiation on the condensate of a Bose gas. In an earlier paper we considered the problem for two simple models showing the cooperative effect between Bose-Einstein condensation and superradiance. In this paper we formalise the model suggested by Ketterle et al in which the Bose condensate particles have a two level structure. We present a soluble microscopic Dicke type model describing a thermodynamically stable system. We find the equilibrium states of the system and compute the thermodynamic functions giving explicit formulae expressing the cooperative effect between Bose-Einstein condensation and superradiance.
Pule Joseph V.
Verbeure André F.
Zagrebnov Valentin A.
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