Effect of anharmonicities in the critical number of trapped condensed atoms with attractive two-body interaction

Details Effect of anharmonicities in the critical number of trapped condensed atoms with attractive two-body interaction Effect of anharmonicities in the critical number of trapped condensed atoms with attractive two-body interaction

2002-08-12

arxiv.org/abs/cond-mat/0208231v1

Physics

Condensed Matter

Soft Condensed Matter

Total of 5 pages, 3 figures and 1 table. To appear in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.66.043605

We determine the quantitative effect, in the maximum number of particles and other static observables, due to small anharmonic terms added to the confining potential of an atomic condensed system with negative two-body interaction. As an example of how a cubic or quartic anharmonic term can affect the maximum number of particles, we consider the trap parameters and the results given by Roberts et al. [Phys. Rev. Lett. 86, 4211 (2001)]. However, this study can be easily transferred to other trap geometries to estimate anharmonic effects.

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