论文标题
玻璃形成液体中的静态自我诱导的异质性：重叠为显微镜
Static self-induced heterogeneity in glass-forming liquids: Overlap as a microscope
论文作者
论文摘要
我们提出并在数值上实施了局部探针，以表征玻璃形成液体的静态自我诱导的异质性。该方法依赖于在具有不受约束边界的介质腔中测得的成对构型之间重叠的平衡统计。通过系统地改变探测腔的位置，我们直接检测到重叠波动的空间变化。我们提供了对构型熵局部估计的统计数据的详细分析，并推断出无定形状态之间的表面张力的估计值，这些成分都是基于玻璃形成的随机一阶过渡理论。我们的结果是可视化和量化玻璃形成热力学的自我诱导异质性的首次直接尝试。他们为开发粗粒有效理论的发展铺平了道路，并直接评估热力学在深层冷液体的活化动力学中的作用。
We propose and numerically implement a local probe of the static self-induced heterogeneity characterizing glass-forming liquids. The method relies on the equilibrium statistics of the overlap between pairs of configurations measured in mesoscopic cavities with unconstrained boundaries. By systematically changing the location of the probed cavity, we directly detect spatial variations of the overlap fluctuations. We provide a detailed analysis of the statistics of a local estimate of the configurational entropy and we infer an estimate of the surface tension between amorphous states, ingredients that are both at the basis of the random first-order transition theory of glass formation. Our results represent the first direct attempt to visualize and quantify the self-induced heterogeneity underpinning the thermodynamics of glass formation. They pave the way for the development of coarse-grained effective theories and for a direct assessment of the role of thermodynamics in the activated dynamics of deeply supercooled liquids.
