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arXiv 2010.08166math.PRcond-mat.stat-mech
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扩展源内部DLA涨落的标度极限

Scaling Limits of Fluctuations of Extended-Source Internal DLA

David Darrow

摘要:

在以前的工作中,我们表明,二维,扩展源内部DLA(IDLA)的莱文和佩雷斯是$δ^{3/5}$ -接近其缩放极限,如果$δ$是晶格尺寸。在本文中,我们调查的涨落本身的标度极限。也就是说,我们表明,两个自然定义的误差函数,它测量的“迟到”的格点在同一时间和在所有时间,分别收敛到几何相关的高斯随机场。我们利用这些结果来计算点相关函数与波动的流动。一路上,我们证明了类似的$δ^{3/5}$界的波动相关的可分沙堆模型的莱文和佩雷斯。

英文摘要:

In a previous work, we showed that the 2D, extended-source internal DLA (IDLA) of Levine and Peres is $δ^{3/5}$-close to its scaling limit, if $δ$ is the lattice size. In this paper, we investigate the scaling limits of the fluctuations themselves. Namely, we show that two naturally defined error functions, which measure the "lateness" of lattice points at one time and at all times, respectively, converge to geometry-dependent Gaussian random fields. We use these results to calculate point-correlation functions associated with the fluctuations of the flow. Along the way, we demonstrate similar $δ^{3/5}$ bounds on the fluctuations of the related divisible sandpile model of Levine and Peres.

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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