3 papers
cond-mat.str-el2024
Analytical expression for -ton vertex contributions to the optical conductivity
Juraj Krsnik, Anna Kauch, Karsten Held
Vertex corrections from the transversal particle-hole channel, so-called -tons, are generic in models for strongly correlated electron systems and can lead to a displaced Drude…
cond-mat.str-el2024
Displaced Drude peak from -ton vertex corrections
J. Krsnik, O. Simard, P. Werner +2
Correlated electron systems often show strong bosonic fluctuations, e.g., of antiferromagnetic nature, around a large wave vector such as . These fluctuatio…
cond-mat.str-el2023
Two-site reduced density matrix from one- and two-particle Green's functions
Gergő Roósz, Anna Kauch, Frederic Bippus +2
Strongly correlated electron systems are challenging to calculate, and entanglement in such systems is not widely analyzed. We present an approach that can be used as a post-proces…