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Keldysh effective action theory for universal physics in spin-1/2 Kondo dots

URN to cite this document:
urn:nbn:de:bvb:355-epub-279287
DOI to cite this document:
10.5283/epub.27928
Smirnov, Sergey ; Grifoni, Milena
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Date of publication of this fulltext: 15 Mar 2013 08:33


Abstract

We present a theory for the Kondo spin-1/2 effect in strongly correlated quantum dots. The theory is applicable at any temperature and voltage. It is based on a quadratic Keldysh effective action parameterized by a universal function. We provide a general analytical form for the tunneling density of states through this universal function for which we propose a simple microscopic model. We apply ...

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