The conductance of interacting nano-wires
arXiv:cond-mat/0210515 · doi:10.1103/PhysRevB.67.193303
Abstract
The conductance of one-dimensional nano-wires of interacting electrons connected to non-interacting leads is calculated in the linear response regime. Two different approaches are used: a many-body Green function technique and a relation to the persistent current recently proposed based on results of the non-interacting case. The conductance is evaluated using the functional renormalization group method and the density matrix renormalization group algorithm. Our results give a strong indication that the idea of obtaining the conductance from the persistent current holds for interacting systems.
version accepted for publication in Phys. Rev. B
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