Nonequilibrium Luttinger liquid: zero-bias anomaly and dephasing.
A one-dimensional system of interacting electrons out of equilibrium is studied in the framework of the Luttinger liquid model. We analyze several setups and develop a theory of tunneling into such systems. A remarkable property of the problem is the absence of relaxation in energy distribution functions of left and right movers yet the presence of the finite dephasing rate due to electron-electron scattering, which smears zero-bias-anomaly singularities in the tunneling density of states.
Institut für Theorie der kondensierten Materie, Universität Karlsruhe, 76128 Karlsruhe, Germany.
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DB
Gutman
Yuval
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Gefen
A D
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Mirlin