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当地与合作社:通过SEER解开玻璃过渡机制

Massimo Pica Ciamarra^1,2, Wencheng Ji³, Matthieu Wyart⁴

¹Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore.

Proceedings of the National Academy of Sciences of the United States of America

|May 24, 2024

概括

当地能源障碍,而不是合作效应,控制超冷却液体动态和玻璃形成. 新的方法系统地提取激发和测量激活能量,解决了长期存在的凝聚物质物理学问题.

科学领域:

凝聚物质物理学凝聚物质物理学
材料科学是一种材料科学.
统计力学就是统计力学.

背景情况:

超冷的液体表现出缓慢的动态,最终形成玻璃,这是一个鲜为人知的现象.
现有的理论争论的是,合作事件还是局部粒子重新排列 (激发) 控制了这种减速.
解决这个问题是了解玻璃过渡和材料特性的关键.

研究的目的:

开发和应用新方法,系统地识别和量化超冷液体中的动态过程.
实证地测试合作效应与局部激发在控制液体动态和玻璃形成中的作用.
在流动模型中提供衡量合作性的一般框架.

主要方法:

引入系统激发外反应 (SEE) 算法,以识别和量化粒子激发及其能量.
通过快速火和重新加热协议测量激活能量.
将这些方法应用于多分散颗粒液体模型,该模型以表现出玻璃过渡标志而闻名.

主要成果:

该SEE算法成功地从液体配置中提取了数百个激发和它们的相关能量.
分析显示,局部屏障的能量,而不是合作效应,决定了液体的脆弱性和激活能量.
该研究提供了对合作效应作为玻璃过渡动态的主要驱动因素的定量证据.

结论:

局部能量障碍及其重新排列是超冷液体动态的主要决定因素,挑战了合作理论.
开发的方法提供了一个强大的新工具,用于定量评估任何流动模型中的合作程度.
这项工作在了解玻璃转型背后的基本机制方面取得了重大进展.

关键词:

激发激发激发的过程玻璃玻璃玻璃玻璃玻璃的玻璃.景观景观景观景观景观

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