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Impurity modes and wave scattering in discrete chains with nonlinear defect states
- Source :
-
Physics Letters A . Jan2006, Vol. 350 Issue 1/2, p134-137. 4p. - Publication Year :
- 2006
-
Abstract
- Abstract: We study the properties of localized impurity modes and the transmission of plane waves across a general nonlinear impurity embedded in an infinite one-dimensional linear chain. Using the formalism of the lattice Green function, we obtain nonlinear equations for the bound state energy and the transmission coefficient, for a wide class of nonlinear impurities. We specialize to a saturable nonlinear impurity, obtaining closed form expressions for the bound state energy and transmission coefficient. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03759601
- Volume :
- 350
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Physics Letters A
- Publication Type :
- Academic Journal
- Accession number :
- 19394919
- Full Text :
- https://doi.org/10.1016/j.physleta.2005.08.097