标题： 玻璃相的晶体表面在无序基底上有多粗糙？ 显示英文标题

标题： How (Super) Rough is the Glassy Phase of a Crystalline Surface with a Disordered Substrate?

摘要： 我们讨论具有无序基底的晶体表面的行为。 我们关注{\em 超粗糙}玻璃相的可能存在的行为，其高度-高度关联函数随距离的平方对数变化。 通过数值模拟，我们确定了这种行为的存在，这种行为似乎与有限尺寸效应无关。 我们对变分方法进行评论，并建议可能需要对该方法的更广泛扩展来完全解释模型的行为。 显示英文摘要

摘要： We discuss the behavior of a crystalline surface with a disordered substrate. We focus on the possible existence of a {\em super-rough} glassy phase, with height-height correlation functions which vary as the square logarithm of the distance. With numerical simulations we establish the presence of such a behavior, that does not seem to be connected to finite size effects. We comment on the variational approach, and suggest that a more general extension of the method could be needed to explain fully the behavior of the model.