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Semiclassical theory of current correlations in chaotic dot-superconductor systems

Published inPhysical review. B, Condensed matter and materials physics, vol. 66, no. 20, p. 201306.1-201306.4
Publication date2002
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 effect
  • Superconductivity
  • Condensed matter
Citation (ISO format)
SAMUELSSON, Martin Peter, BUTTIKER, Markus. Semiclassical theory of current correlations in chaotic dot-superconductor systems. In: Physical review. B, Condensed matter and materials physics, 2002, vol. 66, n° 20, p. 201306.1–201306.4. doi: 10.1103/PhysRevB.66.201306
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ISSN of the journal1098-0121
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