Many-body current formula and current conservation for non-equilibrium fully interacting nanojunctions

Non-Equilibrium Josephson and Andreev Current through Interacting Quantum Dots

We present a theory of transport through interacting quantum dots coupled to normal and superconducting leads in the limit of weak tunnel coupling. A Josephson current between two superconducting leads, carried by first-order tunnel processes, can be established by non-equilibrium proximity effect. Both Andreev and Josephson current is suppressed for bias voltages below a threshold set by the C...

Many–body Theory of Non–equilibrium Systems

Non-equilibrium current via geometric scatterers

We investigate non-equilibrium particle transport in the system consisting of a geometric scatterer and two leads coupled to heat baths with different chemical potentials. We derive expression for the corresponding current the carriers of which are fermions and analyze numerically its dependence of the model parameters in examples, where the scatterer has a rectangular or triangular shape. PACS...

Exciton- and Light-induced Current in Molecular Nanojunctions

Faculty of Sciences, Holon Institute of Technology, 52 Golomb St., Holon 58102, Israel School of Chemistry, Tel-AvivUniversity, Tel-Aviv 69978, Israel c Institute for Physics, University of Augsburg, Augsburg, D-86135, Germany Abstract. We consider excitonand light-induced current in molecular nanojunctions. Using a model comprising a two two-level sites bridge connecting free electron reservoi...

Current-induced forces and hot spots in biased nanojunctions.

We investigate theoretically the interplay of current-induced forces (CIFs), Joule heating, and heat transport inside a current-carrying nanoconductor. We find that the CIFs, due to the electron-phonon coherence, can control the spatial heat dissipation in the conductor. This yields a significant asymmetric concentration of excess heating (hot spot) even for a symmetric conductor. When coupled ...