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arXiv 2005.13570math.PRmath-phmath.MP
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Liouville第一段渗流的距离指数为正

The distance exponent for Liouville first passage percolation is positive

Jian Ding, Ewain Gwynne, Avelio Sepúlveda

摘要:

具有参数$ξ> 0$的离散刘维尔第一通道渗流(LFPP)是通过为每个顶点$z$分配$e^{ξh(z)}$的权重而获得的$\mathbb Z^2$的子图上的随机度量,其中$h$是离散高斯自由场。我们证明了离散LFPP的距离指数对所有$ξ> 0$都是严格正的。更精确地,对于取决于$ξ$的指数$α> 0$,大小为$2^n$的离散环的内边界和外边界之间的离散LFPP距离通常至少为$2^{αn}$。这是一个关键的输入,在证明LFPP承认非平凡的连续标度极限的所有$ξ> 0$,也有理论上的影响,在刘维量子引力的距离的研究。

英文摘要:

Discrete Liouville first passage percolation (LFPP) with parameter $ξ> 0$ is the random metric on a sub-graph of $\mathbb Z^2$ obtained by assigning each vertex $z$ a weight of $e^{ξh(z)}$, where $h$ is the discrete Gaussian free field. We show that the distance exponent for discrete LFPP is strictly positive for all $ξ> 0$. More precisely, the discrete LFPP distance between the inner and outer boundaries of a discrete annulus of size $2^n$ is typically at least $2^{αn}$ for an exponent $α> 0$ depending on $ξ$. This is a crucial input in the proof that LFPP admits non-trivial subsequential scaling limits for all $ξ> 0$ and also has theoretical implications for the study of distances in Liouville quantum gravity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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