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Transport and Coulomb drag for two interacting carbon nanotubes

  • A. Komnik
  • R. Egger
Article

Abstract:

We study nonlinear transport for two coupled one-dimensional quantum wires or carbon nanotubes described by Luttinger liquid theory. Transport properties are shown to crucially depend on the contact length Lc. For a special interaction strength, the problem can be solved analytically for arbitrary Lc. For point-like contacts and strong interactions, a qualitatively different picture compared to a Fermi liquid emerges, characterized by zero-bias anomalies and strong dependence on the applied cross voltage. In addition, pronounced Coulomb drag phenomena are important for extended contacts.

PACS. 71.10.Pm Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.) – 72.10.-d Theory of electronic transport; scattering mechanisms – 72.80.Rj Fullerenes and related materials 

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Copyright information

© EDP Sciences, Springer-Verlag 2001

Authors and Affiliations

  • A. Komnik
    • 1
  • R. Egger
    • 1
  1. 1.Fakultät für PhysikAlbert-Ludwigs-UniversitätFreiburgGermany

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