Enhanced suppresion of localization in a continuous Random-Dimer Model
Condensed Matter
2009-10-22 v1
Abstract
We consider a one-dimensional continuous (Kronig-Penney) extension of the (tight-binding) Random Dimer model of Dunlap et al. [Phys. Rev. Lett. 65, 88 (1990)]. We predict that the continuous model has infinitely many resonances (zeroes of the reflection coefficient) giving rise to extended states instead of the one resonance arising in the discrete version. We present exact, transfer-matrix numerical calculations supporting, both realizationwise and on the average, the conclusion that the model has a very large number of extended states.
Cite
@article{arxiv.cond-mat/9301025,
title = {Enhanced suppresion of localization in a continuous Random-Dimer Model},
author = {A. Sanchez and F. Dominguez-Adame},
journal= {arXiv preprint arXiv:cond-mat/9301025},
year = {2009}
}
Comments
10 pages, 3 Figures available on request, REVTeX 3.0, MA/UC3M/1/93