Numerical analysis of a Langevin equation for systems with infinite absorbing states

  title={Numerical analysis of a Langevin equation for systems with infinite absorbing states},
  author={Crist{\'o}bal L{\'o}pez and Miguel Angel Mu{\~n}oz},
  journal={Physical Review E},
One-dimensional systems with an infinite number of absorbing states exhibit a phase transition that is not fully understood yet. Their static critical exponents are universal and belong in the Reggeon field theory (or directed percolation) universality class. However, exponents associated with the spreading of a localized seed appear to be nonuniversal depending on the nature of the initial condition. We investigate this problem by integrating numerically a non-Markovian Langevin equation… 

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