Non-equilibrium DC noise in a Luttinger liquid with impurity
arXiv:cond-mat/9601117 · doi:10.1103/PhysRevB.54.10845
Abstract
We compute exactly the non-equilibrium DC noise in a Luttinger liquid with an impurity and an applied voltage. By generalizing Landauer transport theory for Fermi liquids to interacting, integrable systems, we relate this noise to the density fluctuations of quasiparticles. We then show how to compute these fluctuations using the Bethe ansatz. The non-trivial density correlations from the interactions result in a substantial part of the non-equilibrium noise. The final result for the noise is a scaling function of the voltage, temperature and impurity coupling. It may eventually be observable in tunneling between edges of a fractional quantum Hall effect device.
10 pages with one figure, uses revtex and epsf
References in corpus (3)
Cited by in corpus (44)
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