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Matter wave solitons at finite temperatures

Lookup NU author(s): Professor Carlo Barenghi, Professor Nikolaos ProukakisORCiD


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We consider the dynamics of a dark soliton in an elongated harmonically trapped Bose-Einstein condensate. A central question concerns the behavior at finite temperatures, where dissipation arises due to the presence of a thermal cloud. We study this problem using coupled Gross-Pitaevskii and N-body simulations, which include the mean field coupling between the condensate and thermal cloud. We find that the soliton decays relatively quickly even at very low temperatures, with the decay rate increasing with rising temperature. © Springer Science+Business Media, LLC 2007.

Publication metadata

Author(s): Jackson B, Barenghi CF, Proukakis NP

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Journal of Low Temperature Physics: Proceedings of the 2006 International Conference on Quantum Fluids and Solids

Year of Conference: 2007

Pages: 387-391

ISSN: 0022-2291

Publisher: Springer New York LLC


DOI: 10.1007/s10909-007-9410-1

Library holdings: Search Newcastle University Library for this item

ISBN: 15737357