161 citations · 797 across the 22 of their papers we have counts for
4 papers · 1 filter
Learning Feynman Diagrams with Tensor Trains
Yuriel Nunez-Fernandez, Matthieu Jeannin, Philipp T. Dumitrescu +4
We use tensor network techniques to obtain high order perturbative diagrammatic expansions for the quantum many-body problem at very high precision. The approach is based on a tens…
Strong competition between -loop-current order and -wave charge order along the diagonal direction in a two-dimensional hot spot model
Vanuildo S. de Carvalho, Thomas Kloss, Xavier Montiel +2
We study the fate of the so-called -loop-current order that breaks both time-reversal and parity symmetries in a two-dimensional hot spot model with antiferromagnetically m…
Thermalization of magnons in yttrium-iron garnet: nonequilibrium functional renormalization group approach
Johannes Hick, Thomas Kloss, Peter Kopietz
Using a nonequilibrium functional renormalization group (FRG) approach we calculate the time evolution of the momentum distribution of a magnon gas in contact with a thermal phonon…
Parametric pumping and kinetics of magnons in dipolar ferromagnets
Thomas Kloss, Andreas Kreisel, Peter Kopietz
The time evolution of magnons subject to a time-dependent microwave field is usually described within the so-called "S-theory", where kinetic equations for the distribution functio…