Abstract
We propose a simple microscopic model for active nematic particles similar in spirit to the Vicsek model for self-propelled polar particles. In two dimensions, we show that this model exhibits a Kosterlitz-Thouless-like transition to quasi-long-range orientational order and that in this nonequilibrium context, the ordered phase is characterized by giant density fluctuations, in agreement with the predictions of Ramaswamy et al.
| Original language | English |
|---|---|
| Article number | 180602 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 96 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 12 May 2006 |
Keywords
- self-propelled particles
- number fluctuations
- ameboid cells
- flocks
- hydrodynamics
- dimensions
- transitions
- systems
- absence
- waves
Cite this
Chate, H., Ginelli, F., & Montagne, R. (2006). Simple model for active nematics: Quasi-long-range order and giant fluctuations. Physical Review Letters, 96(18), [180602]. https://doi.org/10.1103/PhysRevLett.96.180602