Large-Scale Collective Properties of Self-Propelled Rods

被引：323

作者：

Ginelli, Francesco ^{[1
,2
]}

Peruani, Fernando ^{[1
]}

Baer, Markus ^{[3
]}

Chate, Hugues ^{[1
]}

机构：

[1] CEA Saclay, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

[2] Inst Syst Complexes Paris Ile de France, F-75005 Paris, France

[3] Phys Tech Bundesanstalt, D-10587 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 18期

关键词：

MYXOCOCCUS-XANTHUS; PARTICLES; ALIGNMENT;

D O I：

10.1103/PhysRevLett.104.184502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study, in two space dimensions, the collective properties of constant-speed polar point particles interacting locally by nematic alignment in the presence of noise. This minimal approach to self-propelled rods allows one to deal with large numbers of particles, which exhibit a rich phenomenology distinctively different from all other known models for self-propelled particles. Extensive simulations reveal long-range nematic order, phase separation, and space-time chaos mediated by large-scale segregated structures.

引用

页数：4

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