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Fluctuations of the solutions to the KPZ equation in dimensions three and higher
Probability Theory and Related Fields ( IF 2 ) Pub Date : 2019-07-31 , DOI: 10.1007/s00440-019-00938-w
Alexander Dunlap , Yu Gu , Lenya Ryzhik , Ofer Zeitouni

We prove, using probabilistic techniques and analysis on the Wiener space, that the large scale fluctuations of the KPZ equation in $$d\ge 3$$ d ≥ 3 with a small coupling constant, driven by a white in time and colored in space noise, are given by the Edwards-Wilkinson model. This gives an alternative proof, that avoids perturbation expansions, to the results of Magnen and Unterberger (J Stat Phys 171:543–598, 2018 ).

中文翻译:

KPZ 方程在第三维及更高维上的解的波动

我们使用概率技术和对维纳空间的分析证明了 KPZ 方程在 $$d\ge 3$$ d ≥ 3 中的大尺度涨落,耦合常数很小,由时间上的白色驱动,空间上有色噪声,由 Edwards-Wilkinson 模型给出。这为 Magnen 和 Unterberger (J Stat Phys 171:543–598, 2018) 的结果提供了另一种证明,即避免了扰动扩展。
更新日期:2019-07-31
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