Statistical Mechanics of Glassy Dynamics

玻璃动力学统计力学

• 批准号: 0517709
• 负责人: Grzegorz Szamel
• 金额: $ 35.2万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0517709&HistoricalAwards=false
• 关键词: Statistical; Mechanics; Glassy; Dynamics

Grzegorz Szamel of Colorado State University is supported by an award from the Theoretical and Computational Chemistry program within the Division of Chemistry for research aimed at increasing our understanding of glassy dynamics. The research has two goals: first, correlated motions of individual particles via computational and theoretical investigation will be elucidated using a four-point correlation function. The second goal is a search for and evaluation of new self-consistent approximations for dynamics of kinetically constrained models. Understanding particles' motions in amorphous materials is important in a variety of different fields ranging from food preservation and drug stability to crystallization of amorphous materials. Also, new, better self-consistent approximations for the dynamics of simple model systems will be applied to more complicated and finally more realistic systems. It is hoped that these better self-consistent approximations will supplant the standard mode-coupling theory that is now often used to interpret simulations and experiments. The research is is having a broader impact on a range of biological and materials related applications.

科罗拉多州立大学的Grzegorz Szamel获得了化学系理论和计算化学项目的一项奖励，用于增加我们对玻璃态动力学的理解。该研究有两个目标：首先，通过计算和理论研究，将使用四点相关函数阐明单个粒子的相关运动。第二个目标是寻找和评价新的自洽近似动力学约束模型的动力学。了解颗粒在无定形材料中的运动在从食品保存和药物稳定性到无定形材料的结晶的各种不同领域中是重要的。此外，新的，更好的简单模型系统的动力学自洽近似将被应用到更复杂的，最终更现实的系统。人们希望这些更好的自洽近似将取代标准的模式耦合理论，现在经常用来解释模拟和实验。该研究对一系列生物和材料相关应用产生了更广泛的影响。