Astrid de Wijn
Institute for Molecules and Materials
Radboud University Nijmegen, The Netherlands

Boris Fine
Institut für Theoretische Physik
Universität Heidelberg

We are studying numerically the chaotic dynamics of systems consisting of large systems of interacting classical spins through their Lyapunov spectra and Kolmogorov-Sinai entropy.  We are particularly interested in the behaviour of systems with coupling parameters close integrable cases and in the behaviour near phase transitions.

Publications

• A. S. de Wijn, B. Hess, B. V. Fine; Survey of the largest Lyapunov exponents for the lattices of interacting classical spins; Phys. Rev. Lett. 109, 034101 (2012) http://lanl.arxiv.org/abs/1205.2901