$N$-cluster correlations in four- and five-dimensional percolation

Abstract

We study $N$-cluster correlation functions in four- and five-dimensional (4D, 5D) bond percolation by extensive Monte Carlo simulation. We reformulate the transfer Monte Carlo algorithm for percolation [Phys. Rev. E {\bf 72}, 016126 (2005)] using the disjoint-set data structure, and simulate a cylindrical geometry $L^{d-1}\times \infty$, with the linear size up to $L=512$ for 4D and $128$ for 5D. We determine with a high precision all possible $N$-cluster exponents, for $N=2$ and $3$, and the universal amplitude for a logarithmic correlation function. From the symmetric correlator with $N=2$, we obtain the correlation-length critical exponent as $1/\nu =1.4610(12)$ for 4D and $1/\nu =1.737(2)$ for 5D, significantly improving over the existing results. Estimates for the other exponents and the universal logarithmic amplitude have not been reported before to our knowledge. Our work demonstrates the validity of logarithmic conformal field theory and adds to the growing knowledge for high-dimensional percolation.

Percolation, Logarithmic conformal field theory, Monte Carlo simulation

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• Critical exponents and universal excess cluster number of percolation in four and five dimensions
• Crossover exponents, fractal dimensions and logarithms in Landau-Potts field theories
• Universal correlations in percolation
• Universality of closed nested paths in two-dimensional percolation
• Extended-range percolation in five dimensions