Green functions in the renormalized many-body perturbation theory for correlated and disordered electrons

• Published in: Condensed Matter Physics
• Date: 2006
• Main Author: Janis, V.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2006
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/121351
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Green functions in the renormalized many-body perturbation theory for correlated and disordered electrons / V. Janis // Condensed Matter Physics. — 2006. — Т. 9, № 3(47). — С. 499–518. — Бібліогр.: 28 назв. — англ.

The ways of introducing and handling renormalizations in the many-body perturbation theory are reviewed.
 We stress the indispensable role the technique of Green functions plays in extrapolating the weak-coupling
 perturbative approaches to intermediate and strong couplings. We separ...