Dynamics,Disorder and Drive in Condensed Matter and Biological Systems

该基金资助凝聚态物理学的理论研究。 物理学和生物学中许多具有挑战性的问题都涉及到理解大尺度上的宏观组织是如何在噪声存在的情况下产生的。 噪音本质上可以是热的或非热的，由真实的材料或活动中的淬灭杂质产生（例如来自分子马达、质子泵等）在生物系统中。 本计画的目标是从微观模型建立这些系统的宏观非平衡行为的描述。 该研究将使用分析和数值方法相结合的方法来研究凝聚态物理学和生物学的例子，这些例子与实验直接相关，并将导致每个领域的重大科学进步。 这些例子包括：新的粗粒度模型的驱动扩展介质之间的相互作用，无序和驱动器的塑性变形;驱动动力学的周期性介质与周期性钉扎在有限温度下;和流变特性和自组织的活性凝胶和膜，如细胞骨架。这个跨学科的研究将提供广泛的培训研究生和博士后助理。 研究成果将纳入课程。%该基金资助凝聚态物理学的理论研究。 物理学和生物学中许多具有挑战性的问题都涉及到理解大尺度上的宏观组织是如何在噪声存在的情况下产生的。 噪音本质上可以是热的或非热的，由真实的材料或活动中的淬灭杂质产生（例如来自分子马达、质子泵等）在生物系统中。 本计画的目标是从微观模型建立这些系统的宏观非平衡行为的描述。 该研究将使用分析和数值方法相结合的方法来研究凝聚态物理学和生物学的例子，这些例子与实验直接相关，并将导致每个领域的重大科学进步。 这项跨学科的研究将为研究生和博士后提供广泛的培训。 研究成果将纳入课程。*

This grant funds theoretical research in condensed matter physics. Many of the challenging problems in physics and biology involve understanding how macroscopic organization on large scales arises in the presence of noise. The noise may be thermal in nature or non-thermal, arising from quenched impurities in real materials or activity (as from molecular motor, proton pumps, etc.) in biological systems. The goal of this project is to build up a description of the macroscopic nonequilibrium behavior of these systems from microscopic models. The research will use a combination of analytical and numerical methods to study examples from condensed matter physics and biology that are of direct experimental relevance and will lead to significant scientific advances in each of them. These examples include: new coarse-grained models of driven extended media that are plastically deformed by the interplay between disorder and drive; driven dynamics of periodic media with periodic pinning at finite temperature; and rheological properties and self-organization of active gels and membranes such as cytoskeleton.This interdisciplinary research will provide broad training for graduate students and postdoctoral associates. Research results will be incorporated into coursework. %%% This grant funds theoretical research in condensed matter physics. Many of the challenging problems in physics and biology involve understanding how macroscopic organization on large scales arises in the presence of noise. The noise may be thermal in nature or non-thermal, arising from quenched impurities in real materials or activity (as from molecular motor, proton pumps, etc.) in biological systems. The goal of this project is to build up a description of the macroscopic nonequilibrium behavior of these systems from microscopic models. The research will use a combination of analytical and numerical methods to study examples from condensed matter physics and biology that are of direct experimental relevance and will lead to significant scientific advances in each of them. This interdisciplinary research will provide broad training for graduate students and postdoctoral associates. Research results will be incorporated into coursework.***