About the existence of a second critical density in the Bose gases in quasi-uni- and quasi-two-dimensional traps.
Mathieu Beau,
(Centre de Physique Theorique de Marseille, Francia)
jueves 3 de junio de 2010
Abstract: The purpose of this talk is to present a recent work [M. Beau,
V. Zagrebnov, arXiv: 1002.1242] about a second transition between two
regimes of Bose-Einstein condensate characterized by
the existence of a second density /critical temperature for the Bose gas
in anisotropic traps. This work is motivated by recent experimental
observations for cold atomic gases in uni-dimensional and
quasi-two-dimensional traps. From a scaling approach, we will present
theoretical results concerning the coherence properties condensate
[M.Beau, Journ.of.Phys.A, V42, 23, pp. 235,204 (2009)]. Finally, we
discuss the prospects theoretical and experimental work.