Delocalizing transition of multidimensional solitons in Bose-Einstein condensates

Baizakov, B. B.; Salerno, Mario

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Critical behavior of solitonic wave forms of Bose-Einstein condensates in optical lattices (OLs) has been studied in the framework of the continuous mean-field equation. In two and three-dimensions OLs bright matter-wave solitons undergo abrupt delocalization as the strength of the OL is decreased below some critical. value. A similar delocalizing transition happens when the coefficient of nonlinearity crosses the critical value. As opposed, bright solitons in one-dimensional OL's retain their integrity over the whole range of parameter variations. An interpretation of this phenomenon in terms of quantum bound states in the effective potential is proposed.

Titolo:	Delocalizing transition of multidimensional solitons in Bose-Einstein condensates
Autori:	BAIZAKOV B. B. SALERNO, Mario mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2004
Rivista:	PHYSICAL REVIEW A
Abstract:	Critical behavior of solitonic wave forms of Bose-Einstein condensates in optical lattices (OLs) has been studied in the framework of the continuous mean-field equation. In two and three-dimensions OLs bright matter-wave solitons undergo abrupt delocalization as the strength of the OL is decreased below some critical. value. A similar delocalizing transition happens when the coefficient of nonlinearity crosses the critical value. As opposed, bright solitons in one-dimensional OL's retain their integrity over the whole range of parameter variations. An interpretation of this phenomenon in terms of quantum bound states in the effective potential is proposed.
Handle:	http://hdl.handle.net/11386/1063831
Appare nelle tipologie:	1.1.2 Articolo su rivista con ISSN

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