727 citations
- McMaster UniversityCA10 papers
- University of WürzburgDE7 papers
- Canadian Institute for Advanced ResearchCA5 papers
- Universität HamburgDE5 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Max Planck Institute for Solid State ResearchDE4 papers
- Computational Physics (United States)US3 papers
- Institute of PhysicsPL3 papers
- Radboud University NijmegenNL3 papers
- Universität GreifswaldDE3 papers
- University of OradeaRO3 papers
- Austrian Academy of SciencesAT2 papers
5 papers · 1 filter
Uniform hopping approach to the FM Kondo Model at finite temperature
Winfried Koller, Alexander Pruell, Hans Gerd Evertz +1
We study the ferromagnetic Kondo model with classical corespins via unbiased Monte-Carlo simulations and derive a simplified model for the treatment of the corespins at any tempera…
Low Temperature Lanczos Method
Markus Aichhorn, Maria Daghofer, Hans Gerd Evertz +1
We present a modified finite temperature Lanczos method for the evaluation of dynamical and static quantities of strongly correlated electron systems that complements the finite te…
Cumulants in noncommutative probability II. Generalized Gaussian random variables
Franz Lehner
We continue the investigation of noncommutative cumulants. In this paper various characterizations of noncommutative Gaussian random variables are proved.
Asymptotics of the transition probabilities of the simple random walk on self-similar graphs
Bernhard Krön, Elmar Teufl
It is shown explicitly how self-similar graphs can be obtained as `blow-up' constructions of finite cell graphs . This yields a larger family of graphs than the graphs obta…
Effective spinless fermions in the strong coupling Kondo model
Winfried Koller, Alexander Pruell, Hans Gerd Evertz +1
Starting from the two-orbital Kondo-lattice model with classical t_2g spins, an effective spinless fermion model is derived for strong Hund coupling J_H with a projection technique…