The beauty of impurities: Two revivals of Friedel's virtual bound-state concept | Zendy

Antoine Georges | Zendy

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The beauty of impurities: Two revivals of Friedel's virtual bound-state concept

Author(s) -

Antoine Georges

Publication year - 2015

Publication title -

comptes rendus physique

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.984

H-Index - 73

eISSN - 1878-1535

pISSN - 1631-0705

DOI - 10.1016/j.crhy.2015.12.005

Subject(s) - friedel oscillations , physics , impurity , bound state , kondo effect , coulomb , humanities , quantum mechanics , electron , philosophy

Jacques Friedel pioneered the theoretical study of impurities and magnetic impurities in metals. He discovered Friedel oscillations, introduced the concept of virtual bound-state, and demonstrated that the charge on the impurity is related to the scattering phase-shift at the Fermi level (Friedel sum-rule). After a brief review of some of these concepts, I describe how they proved useful in two new contexts. The first one concerns the Coulomb blockade in quantum dots, and its suppression by the Kondo effect. The second one is the dynamical mean-field theory of strong electronic correlations

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