Critical phenomenon of the order-disorder transition in incompressible active fluids

Critical phenomenon of the order-disorder transition in incompressible active fluids
复制标题

不可压缩活性流体有序-无序转变的关键现象

DOI:
10.1088/1367-2630/17/4/042002
复制
发表时间:
2015-04-02
影响因子:
3.3
通讯作者:
Lee, Chiu Fan
Lee, Chiu Fan
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Chen, Leiming;Toner, John;Lee, Chiu Fan

文献摘要

被引文献

相似文献

我们研究不可压缩系统的运动粒子与对齐的相互作用。与它们的可压缩对应物不同,其中有序无序(即,由噪声或数密度调节的(从运动到静止)转变是不连续的,在不可压缩系统中,这种转变可以是连续的,并且属于一个新的普适类。我们计算了在一个ε = 4 - d展开中O(ε)的临界指数,并导出了两个精确的标度关系。这是第一个分析处理的相变在一个新的普遍性类在一个积极的系统。
We study incompressible systems of motile particles with alignment interactions. Unlike their compressible counterparts, in which the order-disorder (i.e., moving to static) transition, tuned by either noise or number density, is discontinuous, in incompressible systems this transition can be continuous, and belongs to a new universality class. We calculate the critical exponents to O (epsilon) in an epsilon = 4 - d expansion, and derive two exact scaling relations. This is the first analytic treatment of a phase transition in a new universality class in an active system.