336 citations · 2.1k across the 77 of their papers we have counts for
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cond-mat.str-el2005★ 4 cited
Systematics of approximations constructed from dynamical variational principles
Michael Potthoff
The systematics of different approximations within the self-energy-functional theory (SFT) is discussed for fermionic lattice models with local interactions. In the context of the…
cond-mat.str-el2005★ 26 cited
Dynamical variational principles for strongly correlated electron systems
Michael Potthoff
The self-energy-functional approach (SFA) is discussed in the context of different variational principles for strongly correlated electron systems. Formal analogies between static…