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8 papers · 1 filter
Two-dimensional oriented self-avoiding walks with parallel contacts
G. T. Barkema, U. Bastolla, P. Grassberger
Two closely related models of oriented self-avoiding walks (OSAWs) on a square lattice are studied. We use the pruned-enriched Rosenbluth method to determine numerically the phase…
Monte Carlo Simulations of Off-Lattice Polymers
Peter Grassberger, Rainer Hegger
We point out that a newly introduced recursive algorithm for lattice polymers has a much wider range of applicability. In particular, we apply it to the simulation of off-lattice p…
Self Avoiding Walks in Four Dimensions: Logarithmic Corrections
Peter Grassberger, Rainer Hegger, Lothar Schaefer
We present simulation results for long () self-avoiding walks in four dimensions. We find definite indications of logarithmic corrections, but the data are poorly descr…
Simulations of Single Polymer Chains in the Dense Limit
Peter Grassberger, Rainer Hegger
We present simulation results for single a-thermal chain polymers in finite volumes. For this we use a recently proposed recursive implementation of the enrichment method. In 3 dim…
Is DLA Locally Isotropic or Self-Affine?
Rainer Hegger, Peter Grassberger
We present results of simulations which show unambiguously that DLA clusters are not self-affine, in contrast to frequent claims. The measured observable is the asymmetry of the la…
Are Damage Spreading Transitions Generically in the Universality Class of Directed Percolation?
Peter Grassberger
We present numerical evidence for the fact that the damage spreading transition in the Domany-Kinzel automaton found by Martins {\it et al.} is in the same universality class as di…
Mean Field Behaviour in a Local Low-Dimensional Model
Hans-Martin Broeker, Peter Grassberger
We point out a new mechanism which can lead to mean field type behaviour in nonequilibrium critical phenomena. We demonstrate this mechanism on a two-dimensional model which can be…
Critical behavior of nonequilibrium q-state systems
Andrea Crisanti, Peter Grassberger
We present two classes of nonequilibrium models with critical behavior. Each model is characterized by an integer , and is defined on configurations of -valued spins on reg…