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

1997/12/19 by F. Brosens, Brosens, F., J. T. Devreese +3
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph

paper · pdf · doi:10.48550/arxiv.quant-ph/9712046

2 pages, Revtex, no figures

arxiv created 1997/12/19 · arxiv updated 2009/12/01

Abstract

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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