Effective mass analysis of Bose-Einstein condensates in optical lattices -- stabilization and levitation

Details Effective mass analysis of Bose-Einstein condensates in optical lattices -- stabilization and levitation Effective mass analysis of Bose-Einstein condensates in optical lattices -- stabilization and levitation

2002-12-02

arxiv.org/abs/cond-mat/0212040v1

Physics

Condensed Matter

Soft Condensed Matter

9 pages, 4 figures

Scientific paper

10.1103/PhysRevA.67.043605

We investigate the time evolution of a Bose-Einstein condensate in a periodic
optical potential. Using an effective mass formalism, we study the equation of
motion for the envelope function modulating the Bloch states of the lattice
potential. In particular, we show how the negative effective mass affects the
dynamics of the condensate.

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