1D model for the dynamics and expansion of elongated Bose-Einstein condensates

Details 1D model for the dynamics and expansion of elongated Bose-Einstein condensates 1D model for the dynamics and expansion of elongated Bose-Einstein condensates

2002-05-24

arxiv.org/abs/cond-mat/0205516v2

Phys. Rev. A 67, 023614 (2003).

Physics

Condensed Matter

RevTeX4, 8 pages, 10 figures, extended and revised version

Scientific paper

10.1103/PhysRevA.67.023614

We present a 1D effective model for the evolution of a cigar-shaped Bose-Einstein condensate in time dependent potentials whose radial component is harmonic. We apply this model to investigate the dynamics and expansion of condensates in 1D optical lattices, by comparing our predictions with recent experimental data and theoretical results. We also discuss negative-mass effects which could be probed during the expansion of a condensate moving in an optical lattice.

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