Journal
ANNALS OF PROBABILITY
Volume 50, Issue 5, Pages 1675-1724Publisher
INST MATHEMATICAL STATISTICS-IMS
DOI: 10.1214/22-AOP1569
Keywords
Gaussian free field; percolation; random walk; capacity
Categories
Funding
- ERC Grant CriBLaM
- IDEX grant from Paris-Saclay
- SERB [SRG/2021/000032]
- Infosys Foundation
- Swiss FNS
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This paper considers the Gaussian free field phi on Z(d), and provides sharp bounds on the probability of the radius of a finite cluster exceeding a given value for any height. The results show the decay rate of this probability in different dimensions.
We consider the Gaussian free field phi on Z(d), for d >= 3, and give sharp bounds on the probability that the radius of a finite cluster in the excursion set {phi >= h} exceeds a large value N for any height h not equal h(*), where h(*) refers to the corresponding percolation critical parameter. In dimension 3, we prove that this probability is subexponential in N and decays as exp{-pi/6 (h - h(*))(2) N/logN} as N -> infinity to principal exponential order. When d >= 4, we prove that these tails decay exponentially in N. Our results extend to other quantities of interest, such as truncated two-point functions and the two-arms probability for annuli crossings at scale N.
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