Probing Localization in Absorbing Systems via Loschmidt Echos
Disordered Systems and Neural Networks
2010-03-11 v1 Chaotic Dynamics
Abstract
We measure Anderson localization in quasi-one-dimensional waveguides in the presence of absorption by analyzing the echo dynamics due to small perturbations. We specifically show that the inverse participation number of localized modes dictates the decay of the Loschmidt echo, differing from the Gaussian decay expected for diffusive or chaotic systems. Our theory, based on a random matrix modeling, agrees perfectly with scattering echo measurements on a quasi one-dimensional microwave cavity filled with randomly distributed scatterers.
Cite
@article{arxiv.0901.4544,
title = {Probing Localization in Absorbing Systems via Loschmidt Echos},
author = {Joshua D. Bodyfelt and Mei C. Zheng and Tsampikos Kottos and Ulrich Kuhl and Hans-Jürgen Stöckmann},
journal= {arXiv preprint arXiv:0901.4544},
year = {2010}
}
Comments
cross-reference with nonlin.CD-Chaotic Dynamics