Wentzel-Bardeen singularity in coupled Luttinger liquids: transport properties

Details Wentzel-Bardeen singularity in coupled Luttinger liquids: transport properties Wentzel-Bardeen singularity in coupled Luttinger liquids: transport properties

1994-08-26

arxiv.org/abs/cond-mat/9408088v1

Physics

Condensed Matter

9 pages, REVTex 3.0, 4 figures on request (thierry@goshawk.lanl.gov). (paper submitted for the CNLS 94 conference "Quantum Com

Scientific paper

The recent progress on 1 D interacting electrons systems and their applications to study the transport properties of quasi one dimensional wires is reviewed. We focus on strongly correlated electrons coupled to low energy acoustic phonons in one dimension. The Wentzel--Bardeen singularity suppresses antiferromagnetic fluctuations and pushes the system toward the metallic phase via an intermediate, metallic phase. The implications of this phenomenon on the transport properties of an ideal wire as well as the properties of a wire with weak or strong scattering are analyzed in a perturbative renormalization group calculation. This allows to recover the three regimes predicted from the divergence criteria of the response functions.

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