3 papers
cond-mat.str-el2020
Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model
Thomas Schäfer, Nils Wentzell, Fedor Šimkovic +23
The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard model at weak coupling…
cond-mat.str-el2020
Anisotropy of electronic correlations: On the applicability of local theories to layered materials
Benjamin Klebel, Thomas Schäfer, Alessandro Toschi +1
Besides the chemical constituents, it is the lattice geometry that controls the most important material properties. In many interesting compounds, the arrangement of elements leads…
cond-mat.str-el2016
Parquet decomposition calculations of the electronic self-energy
O. Gunnarsson, T. Schäfer, J. P. F. LeBlanc +4
The parquet decomposition of the self-energy into classes of diagrams, those associated with specific scattering processes, can be exploited for different scopes. In this work, the…