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 email@example.com
Published online: 30 March 2005
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.
PACS: 03.65.-w – Quantum mechanics / 72.15.Rn – Localization effects (Anderson or weak localization) / 73.63.Nm – Quantum wires
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005