Phases and correlations in active nematic granular systems
arXiv:2408.09508 · doi:10.1039/D4SM00667D
Abstract
We investigate the statistical behavior of a system comprising fore-aft symmetric rods confined between two vertically vibrating plates using numerical simulations closely resembling the experimental setup studied by Narayan et al., Science 317, 105 (2007). Our focus lies in studying the phase transition of the system from an isotropic phase to a nematic phase as we increase either the rod length or the rod concentration. Our simulations confirm the presence of long-range ordering in the ordered phase. Furthermore, we identify a phase characterized by a periodic ordering profile that disrupts translation symmetry. We also provide a detailed analysis of the translational and rotational diffusive dynamics of the rods. Interestingly, the translational diffusivity of the rods is found to increase with the rod concentration.
13 pages, 18 figures. Soft Matter, 2024, Advance Article
References in corpus (28)
- Motility-Induced Phase Separation
- Flocks, herds, and schools: A quantitative theory of flocking
- Spontaneous motion in hierarchically assembled active matter
- Emergence of macroscopic directed motion in populations of motile colloids
- Long-lived Giant Number Fluctuations in a Swarming Granular Nematic
- Collective Motion of Vibrated Polar Disks
- Non-reciprocal phase transitions
- Diffusive transport without detailed balance in motile bacteria: Does microbiology need statistical physics?
- Swarming and swirling in self-propelled polar granular rods
- Turning bacteria suspensions into a "superfluid"
- Flocking at a distance in active granular matter
- Emergent vortices in populations of colloidal rollers
- Minimal model for active nematics: quasi-long-range order and giant fluctuations
- Distortion and destruction of colloidal flocks in disordered environments
- Nonequilibrium steady states in a vibrated-rod monolayer: tetratic, nematic and smectic correlations
- Vortices in vibrated granular rods
- Hydrodynamics of confined active fluids
- Biphasic, Lyotropic, Active Nematics
- Spontaneous Patterning of Confined Granular Rods
- Emergent spatial structures in flocking models: a dynamical system insight
- Dynamics of a bouncing dimer
- Sorting motile rods by activity
- Trapping and sorting active particles: motility-induced condensation & smectic defects
- Active nonreciprocal attraction between motile particles in an elastic medium
- Clustering in vibrated monolayers of granular rods
- Omnidirectional transport and navigation of Janus particles through a nematic liquid crystal film
- Catapulting of topological defects through elasticity bands in active nematics
- Quantifying nematic order in evaporation-driven self-assembly of Halloysite nanotubes: Nematic islands and critical aspect ratio