过冷液体的连续时间随机游动微观流变
Microrheology of supercooled liquids in terms of a continuous time random walk
摘要：
在微流变扰动作用下，对玻璃形成模型系统进行了分子动力学模拟。该粒子的轨迹是在其潜在的势能景观中研究的。配置空间的离散化是通过元数据库分析实现的。漂移和扩散行为的线性和非线性响应可以用连续时间随机游走来解释和分析。通过这种方式，可以识别线性和非线性响应的物理起源。确定临界力，并与文献中的预测进行比较。
英文摘要：
Molecular dynamics simulations of a glass-forming model system are performed under application of a microrheological perturbation on a tagged particle. The trajectory of that particle is studied in its underlying potential energy landscape. Discretization of the configuration space is achieved via a metabasin analysis. The linear and nonlinear responses of drift and diffusive behavior can be interpreted and analyzed in terms of a continuous time random walk. In this way the physical origin of linear and nonlinear response can be identified. Critical forces are determined and compared with predictions from literature.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
