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在活动模式主动阴质中,动到秩序的转换
Cody D Schimming1,2, C J O Reichhardt2, C Reichhardt2
1Johns Hopkins University, Department of Physics and Astronomy, Baltimore, Maryland 21218, USA.
Physical review. E
|April 18, 2025
概括
我们从数值上探索了具有模式活动的活跃敌人. 活动力和条纹距离的增加诱导了从2D到1D流的过渡,导致有序的. 图案几何学决定了的排序.
科学领域:
- 软物质物理学 软物质物理学
- 非平衡的统计力学 统计力学
- 活体物质系统是什么
背景情况:
- 活跃的敌人表现出复杂的动态行为,如流.
- 活动的周期性模式为控制这些行为提供了一条路线.
- 了解活动模式和新兴秩序之间的相互作用至关重要.
研究的目的:
- 为了研究周期性活动模式对二维活跃分子学的影响.
- 探索不同动态模式 (流,有序) 之间的过渡.
- 确定图案几何学对新兴现象的影响.
主要方法:
- 数字模拟二维主动阴性系统的数字模拟.
- 活动力,条纹距离和图案几何形状 (条纹与圆) 的系统变化.
- 分析新出现的流和的订单动态.
主要成果:
- 观察到从二维到一维活跃流的转变,随着活动力和条纹分离的增加.
- 确定了具有特定反铁磁和铁磁排序的稳定旋相.
- 发现过渡到二维流取决于活跃的长度尺度和密度,而不是几何.
- 证明了旋排序对图案几何学非常敏感.
结论:
- 周期性活动的不均质性可以诱导活体体中非平衡阶段过渡.
- 活动模式的几何学批判性地控制了新兴的顺序.
- 这项工作为设计具有定制性质的活性物质系统提供了一种机制.
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