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arXiv · 0804.4592

Stability of excited states of a Bose-Einstein condensate in an anharmonic trap

Dmitry A. Zezyulin·Georgy L. Alfimov·Vladimir V. Konotop·Victor M. Perez-Garcia
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Abstract

We analyze the stability of non-ground nonlinear states of a Bose-Einstein condensate in the mean field limit in effectively 1D (``cigar-shape'') traps for various types of confining potentials. We find that nonlinear states become, in general, more stable when switching from a harmonic potential to an anharmonic one. We discuss the relation between this fact and the specifics of the harmonic potential which has an equidistant spectrum.

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Dmitry A. Zezyulin, Georgy L. Alfimov, Vladimir V. Konotop, Victor M. Perez-Garcia. 2008-04-29. Stability of excited states of a Bose-Einstein condensate in an anharmonic trap. https://doi.org/10.1103/physreva.78.013606

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