Current bistability and hysteresis in strongly correlated quantum wires

Abstract

Nonequilibrium transport properties are determined exactly for an adiabatically connected single channel quantum wire containing one impurity. Employing the Luttinger liquid model with interaction parameter $g$, for very strong interactions $g\lapx 0.2$, and sufficiently low temperatures, we find an S-shaped current-voltage relation. The unstable branch with negative differential conductance gives rise to current oscillations and hysteretic effects. These non perturbative and non linear features appear only out of equilibrium.

4 pages, 1 figure

References in corpus (4)

• Luttinger Liquid Behavior in Carbon Nanotubes
• Bosonization and Strongly Correlated Systems
• Interaction Constants and Dynamic Conductance of a Gated Wire
• A dynamic scattering approach for a gated interacting wire

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