Passage time of the frog model has a sublinear variance

Van Hao Can; Shuta Nakajima

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arXiv · 1904.03667

Passage time of the frog model has a sublinear variance

Van Hao Can·Shuta Nakajima

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Abstract

In this paper, we show that the first passage time in the frog model on $\Z^d$ with $d\geq 2$ has a sublinear variance. This implies that the central limit theorem does not holds at least with the standard diffusive scaling. The proof is based on the method introduced in \cite{BRo, DHS} combining with a control of the maximal weight of paths in locally dependent site-percolation. We also apply this method to get the linearity of the lengths of optimal paths..

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Van Hao Can, Shuta Nakajima. 2019-04-07. Passage time of the frog model has a sublinear variance. https://arxiv.org/abs/1904.03667

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