Self-consistent Dyson equation and self-energy functionals: An analysis and illustration on the example of the Hubbard atom

Perturbation theory using self-consistent Green's functions is one of the most widely used approaches to study many-body effects in condensed matter. On the basis of general considerations and by performing analytical calculations for the specific example of the Hubbard atom, we discuss some ke...

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Veröffentlicht in:	Physical review. B 2017-07, Vol.96 (4), Article 045124
Hauptverfasser:	Tarantino, Walter, Romaniello, Pina, Berger, J. A., Reining, Lucia
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed Matter Condensed matter physics Functionals Green's functions Perturbation theory Physics Strongly Correlated Electrons
Online-Zugang:	Volltext
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