New DNLS equations for anharmonic vibrational impurities

M.I. Molina
MODERN PHYSICS LETTERS B 17, 3 (2003)

ABSTRACT

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.

DOI: http://dx.doi.org/



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