Oscillatory non-linear conductance of an interacting quantum wire with an impurity

Abstract

The nonlinear conductance of a one-dimensional quantum wire adiabatically coupled to Fermi Liquid electron reservoirs is determined in presence of an impurity. We show that electron-electron interaction in connection with the finite length of the wire leads to characteristic oscillations in the current as a function of the applied voltage.

4 pages, two figures, accepted for publication in Phys. Rev. Lett

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