221 citations · 1.4k across the 24 of their papers we have counts for
24 papers
Recent Progress in Spin Glasses
N. Kawashima, H. Rieger
We review recent findings on spin glass models. Both the equilibrium properties and the dynamic properties are covered. We focus on progress in theoretical, in particular numerical…
Superconductor-to-Normal Phase Transition in a Vortex Glass Model: Numerical Evidence for a New Percolation Universality Class
Frank O. Pfeiffer, Heiko Rieger
The three-dimensional strongly screened vortex-glass model is studied numerically using methods from combinatorial optimization. We focus on the effect of disorder strength on the…
Numerical renormalization group study of random transverse Ising models in one and two space dimensions
Y. -C. Lin, N. Kawashima, F. Igloi +1
The quantum critical behavior and the Griffiths-McCoy singularities of random quantum Ising ferromagnets are studied by applying a numerical implementation of the Ma-Dasgupta-Hu re…
Critical Behavior and Griffiths-McCoy Singularities in the Two-Dimensional Random Quantum Ising Ferromagnet
C. Pich, A. P. Young, H. Rieger +1
We study the quantum phase transition in the two-dimensional random Ising model in a transverse field by Monte Carlo simulations. We find results similar to those known analyticall…
Anomalous Diffusion in Aperiodic Environments
F. Igloi, L. Turban, H. Rieger
We study the Brownian motion of a classical particle in one-dimensional inhomogeneous environments where the transition probabilities follow quasiperiodic or aperiodic distribution…
Ground state properties of fluxlines in a disordered environment
H. Rieger
A new numerical method to calculate exact ground states of multi-fluxline systems with quenched disorder is presented, which is based on the minimum cost flow algorithm from combin…