2 papers
cond-mat.str-el2018
Multiloop functional renormalization group for the two-dimensional Hubbard model: Loop convergence of the response functions
Agnese Tagliavini, Cornelia Hille, Fabian B. Kugler +3
We present a functional renormalization group (fRG) study of the two dimensional Hubbard model, performed with an algorithmic implementation which lifts some of the common approxim…
cond-mat.str-el2018
Efficient Bethe-Salpeter equations' treatment in dynamical mean-field theory
Agnese Tagliavini, Stefan Hummel, Nils Wentzell +3
We present here two alternative schemes designed to correct the high-frequency truncation errors in the numerical treatment of the Bethe-Salpeter equations. The schemes are applica…