Bosons with attractive interactions in a trap: Is the ground state fragmented ?

Details Bosons with attractive interactions in a trap: Is the ground state fragmented ? Bosons with attractive interactions in a trap: Is the ground state fragmented ?

1998-05-12

arxiv.org/abs/cond-mat/9805144v1

Physics

Condensed Matter

Statistical Mechanics

5 pages, 2 figures, uses RevTeX

Scientific paper

Possible fragmentation of a Bose-Einstein condensate with negative scattering
length is investigated using a simple two-level model. Our results indicate
that fragmentation does not take place for values of the coupling for which the
system is metastable. We also comment on the possibility of realizing a
fragmented condensate in trapping potentials other than an harmonic one.

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