Damage Spreading in the Ising Model

Abstract

We present two new results regarding damage spreading in ferromagnetic Ising models. First, we show that a damage spreading transition can occur in an Ising chain that evolves in contact with a thermal reservoir. Damage heals at low temperature and spreads for high T. The dynamic rules for the system's evolution for which such a transition is observed are as legitimate as the conventional rules (Glauber, Metropolis, heat bath). Our second result is that such transitions are not always in the directed percolation universality class.

5 pages, RevTeX, revised and extended version, including 3 postscript figures

References in corpus (2)

• Theory of Branching and Annihilating Random Walks
• Chaotic behavior and damage spreading in the Glauber Ising model - a master equation approach

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