Incoherent Matter-Wave Solitons and Pairing Instability in an Attractively Interacting Bose-Einstein Condensate

Buljan, Hrvoje and Segev, Mordechai and Vardi, Amichay (2005) Incoherent Matter-Wave Solitons and Pairing Instability in an Attractively Interacting Bose-Einstein Condensate. Physical Review Letters, 95 (18). pp. 180401-4. ISSN 0031-9007

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Abstract

The dynamics of matter-wave solitons in Bose-Einstein condensates (BEC) is considerably affected by the presence of a thermal cloud and the dynamical depletion of the condensate. Our numerical results, based on the time-dependent Hartree-Fock-Bogoliubov theory, demonstrate the collapse of the attractively interacting BEC via collisional emission of atom pairs into the thermal cloud, which splits the (quasi-one-dimensional) BEC soliton into two partially coherent solitonic structures of opposite momenta. These incoherent matter waves are analogous to optical random-phase solitons.

Item Type: Article
Keywords: Bose-Einstein condensate, solitons, finite temperature, incoherent matter waves
Date: October 2005
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2005) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 0119250
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 24 May 2014 18:34
Last Modified: 24 May 2014 18:34
URI: http://digre.pmf.unizg.hr/id/eprint/1687

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