在人群中实验和数值检测动态出现的动态出现
Luis L Gutierrez-Martinez1, Mario Sandoval2
1Department of Physics, Complex Systems, Universidad Autonoma Metropolitana-Iztapalapa, Iztapalapa, Mexico City, 09340, Mexico.
The European physical journal. E, Soft matter
|November 28, 2025
概括
这项研究通过实验检测人群中的动态出现,使用局部顺序参数观察相纠. 有视觉相互作用的惯性活性布朗粒子模型准确地重现了人群动态.
科学领域:
- 集体行为 集体行为
- 活动物质物理学 活动物质物理学
- 人类动态的人类动态.
背景情况:
- 动态出现,以相纠为特征,已被理论化为活性物质,但仅模拟.
- 之前的研究缺乏对像人群这样的复杂系统中的动态出现的实验验证.
研究的目的:
- 通过实验检测人群中的动态出现.
- 验证使用局部顺序参数来表征集体行为.
- 开发和验证人类人群动态模型.
主要方法:
- 无人机记录了30人的人群在篮球场上慢跑,遵循简单的规则.
- 提取单个路径和速度向量来计算局部顺序参数.
- 实验数据与惯性活性布朗粒子 (IABP) 模型的比较.
主要成果:
- 动态出现的实验证据通过人类人群中的相纠得到证实.
- 地方秩序参数有效地描述了新出现的集体行为.
- 一个具有视觉加权拓相互作用的IABP模型成功地重现了人类人群动态.
结论:
- 动态出现在人群中是实验验证的.
- 地方秩序参数对于理解集体行为至关重要.
- 拟议的IABP模型为模拟人群动态提供了一个强大的框架.
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