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26 April 2024

» arxiv » 1703.8364

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Ultracold atoms in quasi-1D traps: a step beyond the Lieb-Liniger model
Krzysztof Jachymski ; Florian Meinert ; Hagar Veksler ; Paul S. Julienne ; Shmuel Fishman ;
Date:	24 Mar 2017
Abstract:	Ultracold atoms placed in a tight cigar-shaped trap are usually described in terms of the Lieb-Liniger model. We study the extensions of this model which arise when van der Waals interaction between atoms is taken into account. We find that the corrections induced by the finite range of interactions can become especially important in the vicinity of narrow Feshbach resonances and suggest realistic schemes of their experimental detection. The interplay of confinement and interactions can lead to effective transparency where the one-dimensional interactions are weak in a wide range of parameters.
Source:	arXiv, 1703.8364
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