Visibility of a Bose-condensed gas released from an optical lattice at finite temperatures

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In response to a recent manuscript [cond-mat/0609685] on the analysis of interference patterns produced by ultracold atoms released from an optical lattice, we point out that in the presence of a Bose-Einstein condensate the interference pattern can be strongly modified by interaction effects and the presence of a harmonic trap superimposed on the lattice potential. Our results show that the visibility of the interference pattern is significant only if a sizeable condensate fraction is present in the trap.
Response to cond-mat/0609685; 5pages, 2 figures

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/122103

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0701420
 http://arxiv.org/abs/cond-mat/0701420

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arXiv