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arXiv · 0904.0195

The stochastic limit in the analysis of the open BCS model

F. Bagarello
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Abstract

In this paper we show how the perturbative procedure known as {\em stochastic limit} may be useful in the analysis of the Open BCS model discussed by Buffet and Martin as a spin system interacting with a fermionic reservoir. In particular we show how the same values of the critical temperature and of the order parameters can be found with a significantly simpler approach.

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F. Bagarello. 2009-04-01. The stochastic limit in the analysis of the open BCS model. https://doi.org/10.1088/0305-4470%2F37%2F7%2F002

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