Controlled Collapse of a Bose-Einstein Condensate

Preprint

7 February 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0102116

Abstract

The point of instability of a Bose-Einstein Condensate (BEC) due to attractive interactions was studied. Stable 85-Rb BECs were created and then caused to collapse by slowly changing the atom-atom interaction from repulsive to attractive using a Feshbach resonance. At a critical value, an abrupt transition was observed in which atoms were ejected from the condensate. By measuring the onset of this transition as a funstion of number and attractive interactions strength, we determined the stability condition to be N|a|/(aho)=0.461(12)(54), slightly lower than the predicted value of 0.574.

Keywords

BOSE EINSTEIN CONDENSATE
ATTRACTIVE INTERACTIONS
CONTROLLED COLLAPSE
EINSTEIN CONDENSATE
CRITICAL VALUE
BECS

All Related Versions

Version 1, 2001-02-07, ArXiv
Published version: Physical Review Letters, 86 (19), 4211.

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