# Quasi-localization and quasi-mobility edge for light atoms mixed with heavy ones

Source: [Quasi-localization and quasi-mobility edge for light atoms mixed with heavy ones](<https://www.sota2.com/research/paper/68fa2e471e209131ce861038>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:53:26.401Z

Authors: E. Kogan

Published: 2007-06-05T11:48:42.000Z

## Abstract

A 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.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/0706.0629>)

[PDF](<https://arxiv.org/pdf/0706.0629.pdf>)