%0 Journal Article
%T Modulational Instabilities and Domain Walls in Coupled Discrete Nonlinear Schr£żdinger Equations
%A Z. Rapti
%A A. Trombettoni
%A P. G. Kevrekidis
%A D. J. Frantzeskakis
%A Boris A. Malomed
%A A. R. Bishop
%J Physics
%D 2004
%I arXiv
%R 10.1016/j.physleta.2004.07.052
%X We consider a system of two discrete nonlinear Schr\"{o}dinger equations, coupled by nonlinear and linear terms. For various physically relevant cases, we derive a modulational instability criterion for plane-wave solutions. We also find and examine domain-wall solutions in the model with the linear coupling.
%U http://arxiv.org/abs/cond-mat/0409009v1