Non-Equilibrium Josephson and Andreev Current through Interacting Quantum Dots
نویسندگان
چکیده
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 Coulomb charging energy. A π-transition of the supercurrent can be driven by tuning gate or bias voltages. PACS numbers: 74.45.+c,73.23.Hk,73.63.Kv,73.21.La Submitted to: New J. Phys. Non-Equilibrium Josephson and Andreev Current through Interacting Quantum Dots 2
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