Bosons with attractive interactions in a trap: Is the ground state fragmented ?
Abstract
Description
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.
5 pages, 2 figures, uses RevTeX
5 pages, 2 figures, uses RevTeX