Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2004-08-02
Phys. Rev. B 73, 085103 (2006)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 pages, 2 figures; extended and revised version
Scientific paper
We consider low energy charge transport in one-dimensional (1d) electron systems with short range interactions under the influence of a random potential. Combining RG and instanton methods, we calculate the nonlinear ac conductivity and discuss the crossover between the nonanalytic field dependence of the electric current at zero frequency and the linear ac conductivity at small electric fields and finite frequency.
Nattermann Thomas
Rosenow Bernd
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