活性颗粒的纠正和集体动力学是由错位的感知依赖运动驱动的
Rui-Xue Guo1, Jia-Jian Li1, Feng-Guo Li1
1South China Normal University, South China Normal University, Key Laboratory of Atomic and Subatomic Structure and Quantum Control (Ministry of Education), Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, School of Physics, Guangzhou 510006, China and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Guangzhou 510006, China.
不对称通道中的活性颗粒利用旋转运动通过子机制进行定向运动. 这种集体动力学和粒子分离为控制活性物质提供了洞察力.
科学领域:
- 活性物质的物理学 活性物质的物理学
- 复杂系统的动态 复杂系统的动态
- 统计力学就是统计力学.
背景情况:
- 活性粒子表现出由它们的环境和内部特性影响的复杂行为.
- 感知依赖的运动性在活性物质系统中引入了新的相互作用和集体现象.
- 不对称的通道可以充当杆,使随机或旋转动态的定向运动成为可能.
研究的目的:
- 通过数值研究由感知依赖运动驱动的活性粒子的整顿和集体动力学.
- 探索错位感知和不对称通道如何相互作用以产生定向运动.
- 了解最佳纠正和集体行为 (如集群和分离) 的条件.
主要方法:
- 在不对称通道中对活性粒子进行数值模拟.
- 用视觉角和感知值等参数建模视觉依赖的运动性.
- 分析粒子轨迹,集体运动 (旋转,转移) 和纠正效率.
主要成果:
- 来自错位感知的旋转运动通过杆机制转换为定向运动.
- 粒子运动方向取决于通道不对称性,而不是错位方向.
- 同样的粒子形成旋转,转移集群;二进制混合物显示整顿和分离.
- 在特定的通道宽度,自动推进速度和感知参数下实现最佳纠正.
结论:
- 不对齐的感知依赖运动是控制不对称环境中的活性物质的可行机制.
- 粒子感知和通道几何之间的相互作用决定了集体动力学和纠正.
- 结果表明,设计具有所需集体行为和运输特性的活性物质系统的途径.
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