在2d ABP Yukawa模型中的活性参数多分散性.
Shibu Saw1, Lorenzo Costigliola1, Jeppe C Dyre1
1Glass and Time, IMFUFA, Department of Science and Environment, Roskilde University, PO Box 260, DK-4000 Roskilde, Denmark.
Journal of physics. Condensed matter : an Institute of Physics journal
|December 14, 2023
概括
在活性布朗粒子中引入参数多分散性对结构和动态的影响最小,除了相隔系统中的游泳速度变化. 这为有效的活性物质平衡提供了潜力.
科学领域:
- 软物质物理学 软物质物理学
- 统计力学就是统计力学.
- 计算物理学的计算物理.
背景情况:
- 粒子大小多分散性在活性物质研究中很常见.
- 活性布朗粒子 (ABP) 是一个关键的模型系统.
- 移动性诱导的相分离 (MIPS) 是ABP中的一个关键现象.
研究的目的:
- 研究多分散性对除粒子大小以外的其他参数的影响.
- 检查二维ABP对结构和动态的影响.
- 在均和MIPS阶段探索均和二进制分布.
主要方法:
- 活跃布朗粒子的计算模拟.
- 他们使用了Yukawa对相互作用.
- 多分散性在转化扩散,旋转扩散和游泳速度中被引入.
主要成果:
- 观察到结构和动态的最小变化,多分散率高达50%.
- 游泳速度多分散性在MIPS期间显示了辐射分布函数的显著变化.
- 动力学只受到轻微的影响,即使在游泳速度多分散的情况下.
结论:
- 参数多分散性对ABP系统的影响有限.
- 游泳速度多分散性是一个例外,影响MIPS结构.
- 暂时的多分散性可能有助于玻璃形成活性系统的平衡.
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