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Discrete solitons in optical BEC lattices. Effects of n-body interactions

Opened Access Discrete solitons in optical BEC lattices. Effects of n-body interactions
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Autor: Cuevas-Maraver, Jesús
Kevrekidis, Panayotis G.
Karachalios, Nikolaos I.
Melvin, Thomas R.O.
Champneys, A. R.
Eilbeck, J. Chris
Departamento: Universidad de Sevilla. Departamento de Física Aplicada I
Fecha: 2006
Publicado en: Solitons and nonlinear phenomena in degenerate quantum gases From the mathematical theory to the experimental facts (2006),
Tipo de documento: Ponencia
Resumen: In this poster we show some recent results concerning discrete solitons in strong optical lattices, which can be described by the Discrete Nonlinear Schrödinger equation. These results are related to a variation of this equation including saturable nonlinearity terms, a feature throughoutly studied in nonlinear optics. After presenting the derivation of the DNLS equation from the Gross-Pitaevskii equation in the presence of a strong optical lattice, we study the existence of thresholds in the quadratic norm of discrete solitons in the cubic DNLS, cubic-quintic DNLS and photorefractive-DNLS. The second part of the poster is devoted to moving discrete solitons in the photorefractive DNLS equation. In the one hand, we study the existence of radiationless moving discrete solitons; on the other hand, we study the collisions of moving discrete solitons.
Cita: Cuevas-Maraver, J., Kevrekidis, P.G., Karachalios, N.I., Melvin, T.R.O., Champneys, A.R. y Eilbeck, J.C. (2006). Discrete solitons in optical BEC lattices. Effects of n-body interactions. Universidad de Sevilla. FQM280: Fisica no Lineal.Recuperado de
Tamaño: 255.2Kb
Formato: PDF

URI: http://hdl.handle.net/11441/43094

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