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arXiv · 1210.4349

Fermi-liquid regime of the mesoscopic Kondo problem

Denis Ullmo·Dong E. Liu·Sébastien Burdin·Harold U. Baranger
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Abstract

We consider the low temperature regime of the mesoscopic Kondo problem, and in particular the relevance of a Fermi-liquid description of this regime. Using two complementary approaches -- a mean field slave fermion approximation on the one hand and a Fermi-liquid description "\`a la Nozi\`eres" supplemented by an argument of separation of scale on the other hand -- we show that they both lead to (essentially) the same quasi-particle spectra, providing in this way a strong indication that they both give the correct physics of this regime.

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Denis Ullmo, Dong E. Liu, Sébastien Burdin, Harold U. Baranger. 2012-10-16. Fermi-liquid regime of the mesoscopic Kondo problem. https://doi.org/10.1140/epjb%2Fe2013-40418-3

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