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Full counting statistics of Andreev scattering in an asymmetric chaotic cavity

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2005

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Vanevíc, Mihajlo

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Physical Review B. 2005, 72, 134522. Available under: doi: 10.1103/PhysRevB.72.134522

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We study the charge transport statistics in coherent two-terminal double junctions within the framework of the circuit theory of mesoscopic transport. We obtain the general solution of the circuit-theory matrix equations for the Green s function of a chaotic cavity between arbitrary contacts. As an example we discuss the full counting statistics and the first three cumulants for an open asymmetric cavity between a superconductor and a normal-metal lead at temperatures and voltages below the superconducting gap. The third cumulant shows a characteristic sign change as a function of the asymmetry of the two quantum point contacts, which is related to the properties of the Andreev reflection eigenvalue distribution.

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530 Physik

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ISO 690VANEVÍC, Mihajlo, Wolfgang BELZIG, 2005. Full counting statistics of Andreev scattering in an asymmetric chaotic cavity. In: Physical Review B. 2005, 72, 134522. Available under: doi: 10.1103/PhysRevB.72.134522
BibTex
@article{Vanevic2005count-9201,
  year={2005},
  doi={10.1103/PhysRevB.72.134522},
  title={Full counting statistics of Andreev scattering in an asymmetric chaotic cavity},
  volume={72},
  journal={Physical Review B},
  author={Vanevíc, Mihajlo and Belzig, Wolfgang},
  note={Article Number: 134522}
}
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