Weak localization of short pulses in disordered waveguides
Disordered Systems and Neural Networks
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
We consider the phenomenon of weak localization of a short wave pulse in a quasi-1D disordered waveguide. We show that the long-time decay of the average transmission coefficient is not purely exponential, in contradiction with predictions of the diffusion theory. The diffusion theory breaks down completely for times exceeding the Heisenberg time. We also study the survival probability of a quantum particle in a disordered waveguide and compare our results with previous calculations using the super-symmetric nonlinear sigma model.
Keywords
Cite
@article{arxiv.cond-mat/0508104,
title = {Weak localization of short pulses in disordered waveguides},
author = {S. E. Skipetrov and B. A. van Tiggelen},
journal= {arXiv preprint arXiv:cond-mat/0508104},
year = {2007}
}
Comments
4 pages, to appear in Acta Phys. Pol. A (Proceedings of the 2nd Workshop on Quantum Chaos and Localization Phenomena, May 19-22, 2005, Warsaw)