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

Smirnov, Sergey and Grifoni, Milena (2013) Keldysh effective action theory for universal physics in spin-1/2 Kondo dots. Phys. Rev. B 87 (12), p. 121302.

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Date of publication of this fulltext: 15 Mar 2013 08:33

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Other URL: http://prb.aps.org/abstract/PRB/v87/i12/e121302


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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Item type:Article
Date:12 March 2013
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1103/PhysRevB.87.121302DOI
Classification:
NotationType
73.63.KvPACS
72.10.FkPACS
72.15.QmPACS
Keywords:Kondo effect, quantum dots, nonequilibrium, effective field theory
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:27928
Owner only: item control page

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