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波动-消散关系在活性浴中的宏观标记物中是成立的

Dima Boriskovsky¹, Benjamin Lindner^2,3, Yael Roichman^1,4

¹Raymond & Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 6997801, Israel. Roichman@taue.tau.ac.il.

|October 3, 2024

概括

我们通过实验表明,一般化的波动-分散关系 (FDR) 适用于活跃系统. 这种扩展的FDR适用于各种动态,从低度到极度度,由于单一的能量输入/消散通道.

科学领域:

热力学是一种热力学.
统计力学统计力学
软物质物理学软物质物理学

背景情况:

波动-消散关系 (FDR) 是平衡统计力学的基石,连接波动和消散.
扩展FDR超出平衡状态对于发展对非平衡热力学更广泛的理解至关重要.
以前的扩展通常需要特定的系统条件,并且缺乏通用适用性.

研究的目的:

在一个非平衡系统中实验性地研究一般化波动-分散关系 (FDR) 的有效性.
探索一般化FDR在广泛的动态制度中的适用性.
确定主动系统中统一的FDR的基本物理机制.

主要方法:

使用和捕获的追踪粒子与自动行走器相互作用.
通过实验控制和分析在低阻尼和极度阻尼的系统中跟踪器的动态.
测量和关联系统内的活跃波动和能量消耗.

主要成果:

在被研究的活跃系统中证明了一般化的FDR的实验证据.
证实了一般化的FDR在广泛的活性波动频率频谱中的有效性.
观察到系统的动态,从低度到极度度,符合一般化的FDR.

结论:

一个通用的FDR被实验验证为活跃的系统,特别是与跟踪器与自动行走器相互作用的跟踪器.
一般化的FDR在不同动态系统中的稳定性表明在某些条件下具有普遍适用性.
确定了输入和消散能源的单一主导通道,这是使一般化FDR在这个活跃系统中的有效性成为可能的关键因素.

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