Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/45469
Title: | Bose-Fermi mixtures in optical lattices |
Author: | Centelles Aixalà, Mario Guilleumas, Montserrat Barranco Gómez, Manuel Mayol Sánchez, Ricardo Pi Pericay, Martí |
Keywords: | Òptica quàntica Física nuclear Superfluïdesa Matèria condensada Quantum optics Nuclear physics Superfluidity Condensed matter |
Issue Date: | 2006 |
Publisher: | Pleiades Publishing |
Abstract: | Using mean field theory, we have studied Bose-Fermi mixtures in a one-dimensional optical lattice in the case of an attractive boson-fermion interaction. We consider that the fermions are in the degenerate regime and that the laser intensities are such that quantum coherence across the condensate is ensured. We discuss the effect of the optical lattice on the critical rotational frequency for vortex line creation in the Bose-Einstein condensate, as well as how it affects the stability of the boson-fermion mixture. A reduction of the critical frequency for nucleating a vortex is observed as the strength of the applied laser is increased. The onset of instability of the mixture occurs for a sizably lower number of fermions in the presence of a deep optical lattice. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1134/S1054660X06020277 |
It is part of: | Laser Physics, 2006, vol. 16, num. 2, p. 360-366 |
URI: | http://hdl.handle.net/2445/45469 |
Related resource: | http://dx.doi.org/10.1134/S1054660X06020277 |
ISSN: | 1054-660X |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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