Tunneling through a barrier in a Tomonaga-Luttinger liquid connected to reservoirs

1996/04/30 by Akira Furusaki, Naoto Nagaosa · 6 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Theoretical and Computational Physics #cond-mat

paper · pdf · doi:10.1103/physrevb.54.r5239

published as Phys. Rev. B 54 (1996) R5239 · 7 pages, no figures

arxiv created 1996/05/01 · openalex publication_date 1996/08/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The transport through a barrier is studied for a Tomonaga-Luttinger liquid of finite length connected to reservoirs. An effective action for the phase variable at the barrier is derived for spatially varying electric field. In the dc limit only the total voltage drop between the left and right reservoirs appears in the action. We discuss crossovers of the renormalization group flow and hence of the temperature and wire length dependence of the conductance, taking into account the location of the barrier.

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