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Semiclassical theory of current correlations in chaotic dot-superconductor systems

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Published in Physical Review. B, Condensed Matter. 2002, vol. 66, no. 20, p. 201306.1-201306.4
Abstract We present a semiclassical theory of current correlations in multiterminal chaotic dot-superconductor junctions, valid in the absence of the proximity effect in the dot. For a dominating coupling of the dot to the normal terminals and a nonperfect dot-superconductor interface, positive cross correlations are found between currents in the normal terminals. This demonstrates that positive cross correlations can be described within a semiclassical approach. We show that the semiclassical approach is equivalent to a quantum mechanical Green's function approach with suppressed proximity effect in the dot.
Keywords Mesoscopic systems and quantum hall effectSuperconductivityCondensed matter
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SAMUELSSON, Martin Peter, BUTTIKER, Markus. Semiclassical theory of current correlations in chaotic dot-superconductor systems. In: Physical Review. B, Condensed Matter, 2002, vol. 66, n° 20, p. 201306.1-201306.4. https://archive-ouverte.unige.ch/unige:4247

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Deposited on : 2009-11-30

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