967 citations · 5.3k across the 85 of their papers we have counts for
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High-performance functional renormalization group calculations for interacting fermions
J. Lichtenstein, D. Sánchez de la Peña, D. Rohe +3
We derive a novel computational scheme for functional Renormalization Group (fRG) calculations for interacting fermions on 2D lattices. The scheme is based on the exchange parametr…
Universality in antiferromagnetic strange metals
Stefan A. Maier, Philipp Strack
We propose a theory of metals at the spin-density wave quantum critical point in spatial dimension . We provide a first estimate of the full set of critical exponents (dynamic…
Functional renormalization group for commensurate antiferromagnets: Beyond the mean-field picture
Stefan A. Maier, Andreas Eberlein, Carsten Honerkamp
We present a functional renormalization group (fRG) formalism for interacting fermions on lattices that captures the flow into states with commensurate spin-density wave order. Dur…
Interplay between Point-Group Symmetries and the Choice of the Bloch Basis in Multiband Models
Stefan A. Maier, Carsten Honerkamp, Qiang-Hua Wang
We analyze the point-group symmetries of generic multiband tight-binding models with respect to the transformation properties of the effective interactions. While the vertex functi…
Multiorbital effects in the functional renormalization group: A weak-coupling study of the Emery model
Stefan A. Maier, Jutta Ortloff, Carsten Honerkamp
We perform an instability analysis of the Emery three-band model at hole doping and weak coupling within a channel-decomposed functional renormalization group flow proposed in Phys…
Renormalization group flow for fermions into antiferromagnetically ordered phases: Method and mean-field models
Stefan A. Maier, Carsten Honerkamp
We present a functional renormalization group flow for many-fermion lattice models into phases with broken spin-rotational symmetry. The flow is expressed purely in terms of fermio…