Transport and Coulomb drag for two interacting carbon nanotubes
Fakultät für Physik, Albert-Ludwigs-Universität,
79104 Freiburg, Germany
Corresponding author: a email@example.com
Published online: 15 January 2001
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
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001