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arXiv · 0811.3351

Generalized grand-canonical ensemble theory for interacting Bose-Einstein systems

Alexander Jurisch·Jan-Michael Rost
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Abstract

We use the maximum information principle to include particle-interaction into the grand-canonical theory of BECs. The inclusion of the particle-interaction elucidates why thermodynamic calculations for BECs by the grand-canonical ensemble for the non-interacting case are in coincidence with up to date experimental results. However, in our generalized theory we can show that a BEC experiences a real and abrupt phase-transition in contrast to the smooth phase-transition predicted by the non-interacting grand-canonical ensemble. In addition, we discuss possible effects due to a thermal environment and the experimental probing from a general point of view.

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Alexander Jurisch, Jan-Michael Rost. 2008-11-20. Generalized grand-canonical ensemble theory for interacting Bose-Einstein systems. https://arxiv.org/abs/0811.3351

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