Note on the stability of a confined Bose gas: Comment on quant-ph/9712030 by L. Salasnich

Details Note on the stability of a confined Bose gas: Comment on quant-ph/9712030 by L. Salasnich Note on the stability of a confined Bose gas: Comment on quant-ph/9712030 by L. Salasnich

1997-12-19

arxiv.org/abs/quant-ph/9712046v1

Physics

Quantum Physics

2 pages, Revtex, no figures

Scientific paper

We demonstrate analytically that a Bose-Einstein condensate confined in a
harmonic trap with zero-range attractive interparticle interactions is unstable
if there is more than 1 boson. Replacing the zero-range interaction by a
short-range attractive interaction lifts the instability, and leads to a
pronounced clustering, by which the particles leak out of the condensate.

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