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Superdiffusive Conduction: AC Conductivity with Correlated Noise

Authors
  • Oliveira, Fernando A.
  • Morgado, Rafael
  • Hansen, Alex
  • Rubi, J. M.
Type
Preprint
Publication Date
Jan 25, 2005
Submission Date
Jan 25, 2005
Identifiers
DOI: 10.1016/j.physa.2005.05.056
arXiv ID: cond-mat/0501607
Source
arXiv
License
Unknown
External links

Abstract

We present evidence of the existence of a superdiffusive regime in systems with correlated disorder for which localization is suppressed. An expression for anomalous electrical conductivity at low frequencies is found by using a generalized Langevin equation whose memory function accounts for the interactions between the carriers. New mechanisms inducing a superdiffusive conductivity are discussed and experimental possibilities for observing that phenomenon in nanotubes and superlattices are presented.

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