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Critical behavior of a one-dimensional contact process with time-uncorrelated disorder

Author

Listed:
  • Fulco, U.L.
  • Barbosa, P.H.R.
  • Lyra, M.L.

Abstract

In this work, the critical behavior of the one-dimensional contact process with time-uncorrelated disorder is investigated. We develop simulations on finite chains and explore the finite size scaling hypothesis to obtain estimates for the relevant parameters associated with static and dynamical critical quantities. We use an auto-adaptative technique that has been recently shown to provide reliable results for the standard contact process transition. We compare the main results with those derived from the usual short-time dynamics scaling. We found that, contrary to the behavior of the contact-process with quenched disorder which displays an infinite randomness critical point with activated scaling, the contact process with time-uncorrelated disorder belongs to the usual universality class of directed percolation.

Suggested Citation

  • Fulco, U.L. & Barbosa, P.H.R. & Lyra, M.L., 2009. "Critical behavior of a one-dimensional contact process with time-uncorrelated disorder," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(18), pages 3785-3790.
    • Handle: RePEc:eee:phsmap:v:388:y:2009:i:18:p:3785-3790
    DOI: 10.1016/j.physa.2009.06.011
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