Dynamics,Disorder and Drive in Condensed Matter and Biological Systems

本基金资助凝聚态物理的理论研究。物理学和生物学中许多具有挑战性的问题都涉及到如何在噪声存在的情况下大规模地产生宏观组织。噪声可能是热的，也可能是非热的，是由实际材料中的淬火杂质或生物系统中的活动（如分子马达、质子泵等）引起的。该项目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。这项研究将结合分析和数值方法来研究凝聚态物理和生物学中的例子，这些例子与实验直接相关，并将在每个领域带来重大的科学进步。这些例子包括：受驱动扩展介质的新粗粒度模型，该模型由于无序和驱动之间的相互作用而发生塑性变形；有限温度下周期性钉扎周期介质的驱动动力学以及活性凝胶和膜的流变特性和自组织，如细胞骨架。这项跨学科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作业。本基金资助凝聚态物理的理论研究。物理学和生物学中许多具有挑战性的问题都涉及到如何在噪声存在的情况下大规模地产生宏观组织。噪声可能是热的，也可能是非热的，是由实际材料中的淬火杂质或生物系统中的活动（如分子马达、质子泵等）引起的。该项目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。这项研究将结合分析和数值方法来研究凝聚态物理和生物学中的例子，这些例子与实验直接相关，并将在每个领域带来重大的科学进步。这项跨学科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作业

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.***