One-dimensional long-range percolation: a numerical study

Abstract

In this paper we study bond percolation on a one-dimensional chain with power-law bond probability $C/r^{1+\sigma }$, where $r$ is the distance length between distinct sites. We introduce and test an order $N$ Monte Carlo algorithm and we determine as a function of $\sigma$ the critical value $C_c$ at which percolation occurs. The critical exponents in the range $0<\sigma <1$ are reported and compared with mean-field and $\epsilon$-expansion results. Our analysis is in agreement, up to a numerical precision $\approx 10^{-3}$, with the mean field result for the anomalous dimension $\eta =2-\sigma$, showing that there is no correction to $\eta$ due to correlation effects.

10 pages, 11 figures

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