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

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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.
6 pages, two figures

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/174631

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0811.3351
 http://arxiv.org/abs/0811.3351

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arXiv