Inverse Currents in Hamiltonian Coupled Transport

Abstract

The occurrence of an inverse current, where the sign of the induced current is opposite to the applied force, is a highly counterintuitive phenomenon. We show that inverse currents in coupled transport (ICC) of energy and particle can occur in a one-dimensional interacting Hamiltonian system when its equilibrium state is perturbed by coupled thermodynamic forces. This seemingly paradoxical result is possible due to the self-organization occurring in the system in response to the applied forces.

4+2 pages

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• Negative-temperature Fourier transport in one-dimensional systems
• Inverse currents in Coulomb-coupled quantum dots
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• Autonomous Circular Heat Engine
• Anomalous flow in correlated quantum systems: No-go result and multiple-charge scenario
• Quantum vs Classical Thermal Transport at Low Temperatures