Tunnelling induced collapse of an atomic Bose-Einstein condensate in a double-well potential

Details Tunnelling induced collapse of an atomic Bose-Einstein condensate in a double-well potential Tunnelling induced collapse of an atomic Bose-Einstein condensate in a double-well potential

2004-07-23

arxiv.org/abs/cond-mat/0407634v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1088/0953-4075/37/18/009

The stability of a low temperature Bose-Einstein condensate with attractive interactions in one and three dimensional double-well potentials is discussed. In particular, the tunnelling dynamics of a condensate under the influence of a time-dependent potential gradient is investigated. The condensate is shown to collapse at a critical potential gradient which corresponds to a critical number of atoms in one of the two wells. The sensitivity of this tunnelling induced collapse could provide a useful tool in the study of condensates with attractive interactions.

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