Discrete solitons and breathers with dilute Bose-Einstein condensates

Year: 2001

Authors: Trombettoni A., Smerzi A.

Autors Affiliation: Istituto Nazionale di Fisica per la Materia and International School for Advanced Studies, via Beirut 2/4, I-34014, Trieste, Italy.

Abstract: We study the dynamical phase diagram of a dilute Bose-Einstein condensate (BEC) trapped in a periodic potential. The dynamics is governed by a discrete nonlinear Schrodinger equation: intrinsically localized excitations, including discrete solitons and breathers, can be created even if the BEC’s interatomic potential is repulsive. Furthermore, we analyze the Anderson-Kasevich experiment [Science 282, 1686 (1998)], pointing out that mean field effects lead to a coherent destruction of the interwell Bloch oscillations.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 86 (11)      Pages from: 2353  to: 2356

KeyWords: Nonlinear Schrodinger-equation; Wave-guide Arrays; Statistical-mechanics; Tunnel Arrays; Lattices; Modes
DOI: 10.1103/PhysRevLett.86.2353

Citations: 813
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