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Asymptotic behavior for a version of directed percolation on the honeycomb lattice

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  • Chang, Shu-Chiuan
  • Chen, Lung-Chi

Abstract

We consider a version of directed bond percolation on the honeycomb lattice as a brick lattice such that vertical edges are directed upward with probability y, and horizontal edges are directed rightward with probabilities x and one in alternate rows. Let τ(M,N) be the probability that there is at least one connected-directed path of occupied edges from (0,0) to (M,N). For each x∈(0,1], y∈(0,1] and aspect ratio α=M/N fixed, we show that there is a critical value αc=(1−x+xy)(1+x−xy)/(xy2) such that as N→∞, τ(M,N) is 1, 0 and 1/2 for α>αc, α<αc and α=αc, respectively. We also investigate the rate of convergence of τ(M,N) and the asymptotic behavior of τ(MN−,N) and τ(MN+,N) where MN−/N↑αc and MN+/N↓αc as N↑∞.

Suggested Citation

  • Chang, Shu-Chiuan & Chen, Lung-Chi, 2015. "Asymptotic behavior for a version of directed percolation on the honeycomb lattice," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 436(C), pages 547-557.
  • Handle: RePEc:eee:phsmap:v:436:y:2015:i:c:p:547-557
    DOI: 10.1016/j.physa.2015.05.083
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