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

URN zum Zitieren dieses Dokuments:: urn:nbn:de:bvb:355-epub-279287
DOI zum Zitieren dieses Dokuments:: 10.5283/epub.27928

Smirnov, Sergey ; Grifoni, Milena

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Veröffentlichungsdatum dieses Volltextes: 15 Mrz 2013 08:33

Alternative Links zum Volltext:DOI Verlag

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Zusammenfassung

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 ...