Bosons with attractive interactions in a trap: Is the ground state fragmented ?
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 realiz...
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Zusammenfassung: | 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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DOI: | 10.48550/arxiv.cond-mat/9805144 |