Delocalization induced by low-frequency driving in disordered tight-binding lattices

Dario F. Martinez and Rafael A. Molina
Phys. Rev. B 73, 073104 – Published 7 February 2006

Abstract

We study the localization properties of disordered one-dimensional tight-binding lattices driven by ac fields. The localization length of the electrons increases when the frequency of the driving field is smaller than the bandwidth. We show that there is an optimal value of the amplitude of the driving field for which the localization length of the system is maximal. This maximum localization length increases with the inverse of the driving frequency.

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  • Received 11 January 2006

DOI:https://doi.org/10.1103/PhysRevB.73.073104

©2006 American Physical Society

Authors & Affiliations

Dario F. Martinez and Rafael A. Molina

  • Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany

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Issue

Vol. 73, Iss. 7 — 15 February 2006

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