Criticality and oscillatory behavior in non-Markovian Contact Process

Details Criticality and oscillatory behavior in non-Markovian Contact Process Criticality and oscillatory behavior in non-Markovian Contact Process

2001-10-25

arxiv.org/abs/cond-mat/0110546v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 5 figures, to be published in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.65.036102

A Non-Markovian generalization of one-dimensional Contact Process (CP) is being introduced in which every particle has an age and will be annihilated at its maximum age $\tau$. There is an absorbing state phase transition which is controlled by this parameter. The model can demonstrate oscillatory behavior in its approach to the stationary state. These oscillations are also present in the mean-field approximation which is a first-order differential equation with time-delay. Studying dynamical critical exponents suggests that the model belongs to the DP universlity class.

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