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arXiv · 1808.07796

Full counting statistics of the two-stage Kondo effect

D. B. Karki·Mikhail N. Kiselev
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Abstract

We developed a theoretical framework which extends the method of \textit{full counting statistics} (FCS) from conventional single channel Kondo screening schemes to multi-channel Kondo paradigm. The developed idea of FCS has been demonstrated considering an example of two-stage Kondo (2SK) model. We analyzed the charge transferred statistics in the strong-coupling regime of a 2SK model using non-equilibrium Keldysh formulation. A bounded value of Fano factor, $1\leq F\leq 5/3$, confirmed the cross-over regimes of charge transfered statistics in 2SK effect, from Poissonian to super-Poissonian. An innovative way of measuring transport properties of 2SK effect, by the independent measurements of charge current and noise, has been proposed

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D. B. Karki, Mikhail N. Kiselev. 2018-08-23. Full counting statistics of the two-stage Kondo effect. https://doi.org/10.1103/physrevb.98.165443

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