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cond-mat.str-el2015★ 22 cited
Low-energy effective interactions beyond the constrained random-phase approximation by the functional renormalization group
Michael Kinza, Carsten Honerkamp
In the derivation of low-energy effective models for solids targeting the bands near the Fermi level, the constrained random phase approximation (cRPA) has become an appreciated to…
cond-mat.str-el2013★ 16 cited
Two-particle-correlations in a functional renormalization group scheme using a dynamical mean-field theory approach
Michael Kinza, Carsten Honerkamp
We apply a recently introduced hybridization-flow functional renormalization group scheme for Anderson-like impurity models as an impurity solver in a dynamical mean-field theory (…
cond-mat.str-el2012★ 19 cited
An alternative functional renormalization group approach to the single impurity Anderson model
Michael Kinza, Jutta Ortloff, Johannes Bauer +1
We present an alternative functional renormalization group (fRG) approach to the single-impurity Anderson model at finite temperatures. Starting with the exact self-energy and inte…