463 citations · 3k across the 44 of their papers we have counts for
4 papers · 1 filter
Intersite electron correlations in a Hubbard model on inhomogeneous lattices
Nayuta Takemori, Akihisa Koga, Hartmut Hafermann
We study intersite electron correlations in the half-filled Hubbard model on square lattices with periodic and open boundary conditions by means of a real-space dual fermion approa…
Mechanisms of finite temperature magnetism in the three-dimensional Hubbard model
Daniel Hirschmeier, Hartmut Hafermann, Emanuel Gull +2
We examine the nature of the transition to the antiferromagnetically ordered state in the half-filled three-dimensional Hubbard model using the dual-fermion multiscale approach. Co…
Thermodynamic consistency of the charge response in dynamical mean-field based approaches
Erik G. C. P. van Loon, Hartmut Hafermann, Alexander I. Lichtenstein +1
We consider the thermodynamic consistency of the charge response function in the (extended) Hubbard model. In DMFT, thermodynamic consistency is preserved. We prove that the static…
TRIQS: A Toolbox for Research on Interacting Quantum Systems
Olivier Parcollet, Michel Ferrero, Thomas Ayral +4
We present the TRIQS library, a Toolbox for Research on Interacting Quantum Systems. It is an open-source, computational physics library providing a framework for the quick develop…