Cluster-size decay in supercritical long-range percolation
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866911962384826368 |
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| author | Jorritsma, Joost Komjáthy, Júlia Mitsche, Dieter |
| author_facet | Jorritsma, Joost Komjáthy, Júlia Mitsche, Dieter |
| contents | We study the cluster-size distribution of supercritical long-range percolation on $\mathbb{Z}^d$, where two vertices $x,y\in\mathbb{Z}^d$ are connected by an edge with probability $\mathrm{p}(\|x-y\|):=p\min(1,β\|x-y\|)^{-dα}$ for parameters $p\in(0, 1]$, $α>1$, and $β>0$. We show that when $α>1+1/d$, and either $β$ or $p$ is sufficiently large, the probability that the origin is in a finite cluster of size at least $k$ decays as $\exp\big(-Θ(k^{(d-1)/d})\big)$. This corresponds to classical results for nearest-neighbor Bernoulli percolation on $\mathbb{Z}^d$, but is in contrast to long-range percolation with $α<1+1/d$, when the exponent of the stretched exponential decay changes to $2-α$. This result, together with our accompanying paper, establishes the phase diagram of long-range percolation with respect to cluster-size decay. Our proofs rely on combinatorial methods that show that large delocalized components are unlikely to occur. As a side result we determine the asymptotic growth of the second-largest connected component when the graph is restricted to a finite box. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_00712 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Cluster-size decay in supercritical long-range percolation Jorritsma, Joost Komjáthy, Júlia Mitsche, Dieter Probability 60C05, 60K35 We study the cluster-size distribution of supercritical long-range percolation on $\mathbb{Z}^d$, where two vertices $x,y\in\mathbb{Z}^d$ are connected by an edge with probability $\mathrm{p}(\|x-y\|):=p\min(1,β\|x-y\|)^{-dα}$ for parameters $p\in(0, 1]$, $α>1$, and $β>0$. We show that when $α>1+1/d$, and either $β$ or $p$ is sufficiently large, the probability that the origin is in a finite cluster of size at least $k$ decays as $\exp\big(-Θ(k^{(d-1)/d})\big)$. This corresponds to classical results for nearest-neighbor Bernoulli percolation on $\mathbb{Z}^d$, but is in contrast to long-range percolation with $α<1+1/d$, when the exponent of the stretched exponential decay changes to $2-α$. This result, together with our accompanying paper, establishes the phase diagram of long-range percolation with respect to cluster-size decay. Our proofs rely on combinatorial methods that show that large delocalized components are unlikely to occur. As a side result we determine the asymptotic growth of the second-largest connected component when the graph is restricted to a finite box. |
| title | Cluster-size decay in supercritical long-range percolation |
| topic | Probability 60C05, 60K35 |
| url | https://arxiv.org/abs/2303.00712 |