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

Autor:	Jurisch, Alexander, Rost, Jan-Michael
Rok vydání:	2008
Předmět:	Condensed Matter - Statistical Mechanics
Druh dokumentu:	Working Paper
Popis:	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. Comment: 6 pages, two figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0811.3351 Zobrazit plný text záznamu View this record from Arxiv