Browsing Fakultät für Physik (inkl. GAUSS) by Referee "Honecker, Andreas Prof. Dr."
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Photoexcitations of Model Manganite Systems using Matrix-Product States
(2019-01-30)The emergence of order in materials with strongly-correlated electrons in out-of-equilibrium situations inspires a lot of new research, both experimental and theoretical. The main goal of this theoretical research project ... -
A Variational Cluster Approximation for the Heisenberg Model
(2017-04-13)In this thesis we present a novel variational cluster approximation for Heisenberg spin systems. It is based on the self-energy functional theory by Potthoff for fermionic and bosonic models with local interactions. To ... -
Finite-temperature dynamics of low-dimensional quantum systems with DMRG methods
(2016-08-17)This thesis is concerned with the numerical study of one-dimensional (1D) spin-1/2 quantum magnets and related method development. Its focus is on the calculation of dynamical spin correlation functions both at zero and ...