TY - JOUR

T1 - Modulational instabilities and domain walls in coupled discrete nonlinear Schrödinger equations

AU - Rapti, Z.

AU - Trombettoni, A.

AU - Kevrekidis, P. G.

AU - Frantzeskakis, D. J.

AU - Malomed, Boris A.

AU - Bishop, A. R.

N1 - Funding Information:
Z.R. and P.G.K. gratefully acknowledge the hospitality of the Center of Nonlinear Studies of the Los Alamos National Laboratory where part of this work was performed. P.G.K. also acknowledges the support of NSF-DMS-0204585, NSF-CAREER and the Eppley Foundation for Research. D.J.F. acknowledges support of the Special Research Account of University of Athens. The work of B.A.M. was supported, in a part, by the Israel Science Foundation through the grant No. 8006/03. Research at Los Alamos is performed under the auspices of the US-DoE.

PY - 2004/9/13

Y1 - 2004/9/13

N2 - We consider a system of two discrete nonlinear Schrödinger 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.

AB - We consider a system of two discrete nonlinear Schrödinger 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.

UR - http://www.scopus.com/inward/record.url?scp=4444356908&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2004.07.052

DO - 10.1016/j.physleta.2004.07.052

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AN - SCOPUS:4444356908

VL - 330

SP - 95

EP - 106

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 1-2

ER -