Polar vs. apolar alignment in systems of polar self-propelled particles

被引：36

作者：

Peruani, Fernando ^{[1
]}

Ginelli, Francesco ^{[2
]}

Baer, Markus ^{[3
]}

Chate, Hugues ^{[2
]}

机构：

[1] Max Planck Phys Complex Syst, Nothnitzer Str 38, Dresden, Germany

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

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

来源：

STATPHYS-KOLKATA VII | 2011年 / 297卷

关键词：

GIANT NUMBER FLUCTUATIONS; PHASE-TRANSITION; ORDER; MODEL;

D O I：

10.1088/1742-6596/297/1/012014

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The symmetry of the alignment mechanism in systems of polar self-propelled particles determines the possible macroscopic large-scale patterns that can emerge. Here we compare polar and apolar alignment. These systems share some common features like giant number fluctuations in the ordered phase and self-segregation in the form of bands near the onset of orientational order. Despite these similarities, there are essential differences like the symmetry of the ordered phase and the stability of the bands.

引用

页数：8

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