如何定义活跃系统中的温度?
Lukas Hecht1, Lorenzo Caprini2, Hartmut Löwen3
1Institute of Condensed Matter Physics, Department of Physics, Technical University of Darmstadt, Hochschulstraße 8, D-64289 Darmstadt, Germany.
The Journal of chemical physics
|December 9, 2024
概括
在活性系统中定义温度是复杂的. 这项研究揭示了两种不同类型的温度定义,它们显示出令人惊的一致性,甚至远离平衡,有助于在非平衡系统中的测量.
科学领域:
- 统计力学 统计力学
- 软物质物理学 软物质物理学
- 非平衡的热力学.
背景情况:
- 在平衡热力学中,不同的温度定义是相当的.
- 活性物质系统本质上是不平衡的,这给温度测量带来了挑战.
- 现有的在活跃系统中定义温度的方法产生了不同的结果.
研究的目的:
- 系统地比较活跃系统的各种温度定义.
- 确定不同温度定义产生一致值的条件.
- 讨论在活性物质中测量温度的实际含义.
主要方法:
- 惯性活性布朗粒子的理论分析.
- 活动系统的计算模拟.
- 动力,配置,有效和基于病毒的温度的比较.
主要成果:
- 两个不同的类别的温度定义出现.
- 第一个类 (动力,配置,速度时刻) 在广泛的参数范围内显示出强烈的一致性.
- 第二类 (有效性,病毒性,斯托克斯-爱因斯坦,限制) 也显示了内部协议,但与第一类有很大的不同.
结论:
- 尽管处于不平衡状态,但活跃系统中的某些温度定义表现出了显著的趋同.
- 这些发现为在活性物质研究中选择适当的温度测量提供了框架.
- 了解这些温度级别对于准确描述活跃系统至关重要.
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