Andreev tunnelling in quantum dots: A slave-boson approach

Abstract

We study a strongly interacting quantum dot connected to a normal and to a superconducting lead. By means of the slave-boson technique we investigate the low temperature regime and discuss electrical transport through the dot. We find that the zero bias anomaly in the current-voltage characteristics which is associated to the occurance of the Kondo resonance in the quantum dot, is enhanced in the presence of superconductivity, due to resonant Andreev scattering.

4 pages, 1 figure

References in corpus (2)

• Kondo Physics in a Single Electron Transistor
• Resonant Andreev Tunneling in Strongly Interacting Quantum Dots

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