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1990

• GLOTZER SC, STAUFFER D, SASTRY S
  DAMAGE SPREADING IN THE Q2R ISING-MODEL
  PHYSICA A 164 (1): 1-11 MAR 15 1990 [x]
  
  View Abstract
  x

  We find evidence of metastability in the spreading of damage in the Q2R cellular automaton approximation for a 2D Ising system which is first equilibrated with a standard Metropolis simulation. A subsequent study of both single-site and whole-line damage spreading in Metropolis/Q2R systems as well as in pure Q2R systems shows a logarithmic dependence of the damage-spreading threshold on time, and saturation effects in single-site damage suggest a transition in the damage-spreading threshold at low initial energy values. Examination of the magnetization as a function of energy in pure Q2R shows extremely long relaxation times for p < pc, which may bear some relation to the extremely slow convergence of the damage-spreading threshold.