Eur. Phys. J. B 43, 543-548 (2005)
https://doi.org/10.1140/epjb/e2005-00088-4

Simple model for a quantum wire III. Transmission in finite samples with correlated disorder

Física Teórica, Facultad de Ciencias, Universidad de Salamanca, 37008 Salamanca, Spain

Corresponding author: ^a argon@usal.es

Received: 16 November 2004
Published online: 30 March 2005

Abstract

The effect of a continuous model of correlations upon one-dimensional finite disordered quantum wires modeled by an array of delta-potentials, is analyzed. Although the model proposed is not able to include new truly extended states in the spectrum, the transport properties of a finite sample are noticeably improved due to the existence of states whose localization length is larger than the system size. This enhancement of transmission is maximized for relatively short chains.