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Author Fendley, P. ♦ Saleur, H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ FERMI GAS ♦ NOISE ♦ IMPURITIES ♦ QUASI PARTICLES ♦ TUNNEL EFFECT ♦ FLUCTUATIONS ♦ TEMPERATURE DEPENDENCE ♦ BACKSCATTERING ♦ DENSITY ♦ ELECTRIC CURRENTS ♦ QUANTUM HALL EFFECT ♦ VOLTAGE DEPENDENCE
Abstract We compute exactly the nonequilibrium 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 nontrivial density correlations from the interactions result in a substantial part of the nonequilibrium 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. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-10-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 15


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