论文标题
量化活性胶体的非平衡活性
Quantifying the non-equilibrium activity of an active colloid
论文作者
论文摘要
活跃物质系统表现出丰富的紧急行为，这是由于在个别药物水平上的持续注射和能量耗散而表现出来。由于这些系统远非平衡，因此无法使用平衡统计力学框架来理解它们的动力学和能量。随机热力学的最新发展将经典的工作，热量和能量耗散概念扩展到不平衡系统的波动。我们使用实验和理论的最新进展来研究单个光激活的自旋转胶体颗粒的非热耗散。我们专注于表征从热波动到非热波动的过渡，并表明可以从有限的时间序列数据中测量$ \ sim k_bt/$ s的订单的能量耗散率。
Active matter systems exhibit rich emergent behavior due to constant injection and dissipation of energy at the level of individual agents. Since these systems are far from equilibrium, their dynamics and energetics cannot be understood using the framework of equilibrium statistical mechanics. Recent developments in stochastic thermodynamics extend classical concepts of work, heat, and energy dissipation to fluctuating non-equilibrium systems. We use recent advances in experiment and theory to study the non-thermal dissipation of individual light-activated self-propelled colloidal particles. We focus on characterizing the transition from thermal to non-thermal fluctuations and show that energy dissipation rates on the order of $\sim k_BT/$s are measurable from finite time series data.
