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Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms

Influence of interactions beyond two-body interaction on the collapse of Bose–Einstein condensate in the attractive regime

Aditya Saxena, Abhinav K. Nair

Published Oct 3, 2026• 0 citations
Publisher
DOI
10.1016/j.nimb.2026.166325

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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.
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.