Quasi-localization and quasi-mobility edge for light atoms mixed with heavy ones
AbstractA mixture of light and heavy atoms is considered. We study the kinetics of the light atoms, scattered by the heavy ones, the latter undergoing slow diffusive motion. In three-dimensional space we claim the existence of a crossover region (in energy), which separates the states of the light atoms with fast diffusion and the states with slow diffusion; the latter is determined by the dephasing time. For the two dimensional case we have a transition between weak localization, observed when the dephasing length is less than the localization length (calculated for static scatterers), and strong localization observed in the opposite case. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008
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Bibliographic InfoArticle provided by Springer in its journal The European Physical Journal B.
Volume (Year): 61 (2008)
Issue (Month): 2 (01)
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Web page: http://www.springer.com/economics/journal/10051
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