Hedin’s equations and enumeration of Feynman diagrams

L. G. Molinari
Phys. Rev. B 71, 113102 – Published 17 March 2005

Abstract

Hedin’s equations are solved perturbatively in zero dimension to count Feynman graphs for self-energy, polarization, propagator, effective potential and vertex function in a many-body theory of fermions with two-body interaction. Counting numbers are also obtained in the GW approximation.

  • Received 17 September 2004

DOI:https://doi.org/10.1103/PhysRevB.71.113102

©2005 American Physical Society

Authors & Affiliations

L. G. Molinari*

  • Dipartimento di Fisica dell’Università degli Studi di Milano and I.N.F.N. sezione di Milano, Via Celoria 16, I-20133 Milano, Italy

  • *Electronic address: luca.molinari@mi.infn.it

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 71, Iss. 11 — 15 March 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×