New DNLS Equations for Anharmonic Vibrational Impurities

Details New DNLS Equations for Anharmonic Vibrational Impurities New DNLS Equations for Anharmonic Vibrational Impurities

2002-06-12

arxiv.org/abs/cond-mat/0206209v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

16 pages, 5 figures

Scientific paper

10.1142/S0217984903004890

We examine some new DNLS-like equations that arise when considering
strongly-coupled electron-vibration systems, where the local oscillator
potential is anharmonic. In particular, we focus on a single, rather general
nonlinear vibrational impurity and determine its bound state(s) and its
dynamical selftrapping properties.

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