Service de Physique de l'Etat Condensé, CEA-Saclay, 91191 Gif-sur-Yvette, France.
Phys Rev Lett. 2010 May 7;104(18):184502. doi: 10.1103/PhysRevLett.104.184502. Epub 2010 May 4.
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.
我们在二维空间中研究了在噪声存在下通过向列排列进行局部相互作用的匀速极点球状粒子的集体性质。这种自推进棒的最小方法允许处理大量粒子，这些粒子表现出与所有其他已知自推进粒子模型明显不同的丰富现象。广泛的模拟揭示了长程向列有序、相分离和由大尺度分离结构介导的时空混沌。
