Nonequilibrium Luttinger liquid: zero-bias anomaly and dephasing |
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Authors: | Gutman D B Gefen Yuval Mirlin A D |
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Affiliation: | Institut für Theorie der kondensierten Materie, Universit?t Karlsruhe, 76128 Karlsruhe, Germany. |
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Abstract: | 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. |
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