当前位置: X-MOL 学术Eur. Phys. J. E › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Critical behavior in active lattice models of motility-induced phase separation
The European Physical Journal E ( IF 1.8 ) Pub Date : 2021-04-16 , DOI: 10.1140/epje/s10189-021-00058-1
Florian Dittrich 1 , Thomas Speck 1 , Peter Virnau 1
Affiliation  

Abstract

Lattice models allow for a computationally efficient investigation of motility-induced phase separation (MIPS) compared to off-lattice systems. Simulations are less demanding, and thus, bigger systems can be accessed with higher accuracy and better statistics. In equilibrium, lattice and off-lattice models with comparable interactions belong to the same universality class. Whether concepts of universality also hold for active particles is still a controversial and open question. Here, we examine two recently proposed active lattice systems that undergo MIPS and investigate numerically their critical behavior. In particular, we examine the claim that these systems and MIPS in general belong to the Ising universality class. We also take a more detailed look on the influence and role of rotational diffusion and active velocity in these systems.

Graphic Abstract



中文翻译:

运动引起的相分离的活性晶格模型中的关键行为

摘要

与非晶格系统相比,晶格模型可以对运动引起的相分离 (MIPS) 进行高效的计算研究。模拟要求较低,因此可以以更高的精度和更好的统计数据访问更大的系统。在平衡状态下,具有可比相互作用的晶格和非晶格模型属于同一普适性类别。普遍性概念是否也适用于活性粒子仍然是一个有争议和悬而未决的问题。在这里,我们研究了最近提出的两种经过 MIPS 的活性晶格系统,并以数值方式研究了它们的关键行为。特别是,我们检查了这些系统和 MIPS 一般属于 Ising 通用性类别的主张。我们还更详细地研究了这些系统中旋转扩散和主动速度的影响和作用。

图文摘要

更新日期:2021-04-16
down
wechat
bug