Weitz Group @ Georgia Tech Theoretical Ecology and Quantitative Biology



An algorithm-independent definition of damage spreading - Application to directed percolation

TitleAn algorithm-independent definition of damage spreading - Application to directed percolation
Publication TypeJournal Article
Year of Publication1997
AuthorsHinrichsen H, Weitz JS, Domany E
JournalJournal of Statistical Physics
Volume88
Pagination617-636
Date PublishedAUG
Abstract

We present a general definition of damage spreading in a pair of models. Using this general framework. one can define damage spreading in an objective manner that does not depend on the particular dynamic procedure that is being used. The formalism can be used for any spin-model or cellular automaton, with sequential or parallel update rules. At this point we present its application to the Domany-Kinzel cellular automaton in one dimension, this being the simplest model in which damage spreading has been found and studied extensively. We show that the active phase of this model consists of three subphases characterized by different damage-spreading properties.

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