97 citations · 178 across the 5 of their papers we have counts for
5 papers
Antiferromagnetism and competing charge instabilities of electrons in strained graphene from Coulomb interactions
David Sánchez de la Peña, Julian Lichtenstein, Carsten Honerkamp +1
We study the quantum many-body ground states of electrons on the half-filled honeycomb lattice with short- and long-ranged density-density interactions as a model for graphene. To…
Parallel adaptive integration in high-performance functional Renormalization Group computations
Julian Lichtenstein, Jan Winkelmann, David Sánchez de la Peña +2
The conceptual framework provided by the functional Renormalization Group (fRG) has become a formidable tool to study correlated electron systems on lattices which, in turn, provid…
Competing electronic instabilities of extended Hubbard models on the honeycomb lattice: A functional Renormalization Group calculation with high wavevector resolution
D. Sánchez de la Peña, J. Lichtenstein, C. Honerkamp
We investigate the quantum many-body instabilities for electrons on the honeycomb lattice at half-filling with extended interactions, motivated by a description of graphene and rel…
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…
Functional renormalization group study of an eight-band model for the iron arsenides
J. Lichtenstein, S. A. Maier, C. Honerkamp +4
We investigate the superconducting pairing instabilities of eight-band models for the iron arsenides. Using a functional renormalization group treatment, we determine how the criti…