Derivation of a stability condition reveals that misleading convergence in self-consistent many-electron theories can occur independently of irreducible vertex divergences, with a stabilization procedure proposed.
Hedin, New Method for Calculating the One-Particle Green’s Function with Application to the Electron-Gas Problem, Physical Review 139, A796 (1965)
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Origin of misleading convergence in self-consistent many-electron theories: Fundamental aspects and practical implications
Derivation of a stability condition reveals that misleading convergence in self-consistent many-electron theories can occur independently of irreducible vertex divergences, with a stabilization procedure proposed.