Effects of Andreev reflection on the conductance of quantum-chaotic dots

Details Effects of Andreev reflection on the conductance of quantum-chaotic dots Effects of Andreev reflection on the conductance of quantum-chaotic dots

2009-02-21

arxiv.org/abs/0902.3687v2

Phys. Rev. B 79, 245412 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 7 figures

Scientific paper

10.1103/PhysRevB.79.245412

We investigate the conductance statistics of a quantum-chaotic dot--a normal-metal grain--with a superconducting lead attached to it. The cases of one and two normal leads additionally attached to the dot are studied. For these two configurations the complete distribution of the conductance is calculated, within the framework of random matrix theory, as a function of the transparency parameter of the Schottky barrier formed at the interface of the normal-metal and superconducting regions. Our predictions are verified by numerical simulations.

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