9 citations · 13 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el2017★ 9 cited
Comparison of the Iterated Equation of Motion Approach and the Density Matrix Formalism for the Quantum Rabi Model
Mona H. Kalthoff, Frederik Keim, Holger Krull +1
The density matrix formalism and the equation of motion approach are two semi-analytical methods that can be used to compute the non-equilibrium dynamics of correlated systems. Whi…
cond-mat.str-el2015★ 4 cited
Effective One-Dimensional Models from Matrix Product States
Frederik Keim, Götz S. Uhrig
In this paper we present a method for deriving effective one-dimensional models based on the matrix product state formalism. It exploits translational invariance to work directly i…