Individual and collective dynamics of self-propelled soft particles

Abstract

Deformable self-propelled particles provide us with one of the most important nonlinear dissipative systems, which are related, for example, to the motion of microorganisms. It is emphasized that this is a subject of localized objects in non-equilibrium open systems. We introduce a coupled set of ordinary differential equations to study various dynamics of individual soft particles due to the nonlinear couplings between migration, spinning and deformation. By introducing interactions among the particles, the collective dynamics and its collapse are also investigated by changing the particle density and the interaction strength. We stress that assemblies of self-propelled particles also exhibit a variety of non-equilibrium localized patterns.

References in corpus (17)

• Novel type of phase transition in a system of self-driven particles
• Fluid dynamics and noise in bacterial cell-cell and cell-surface scattering
• Collective motion of self-propelled particles interacting without cohesion
• Non-equilibrium clustering of self-propelled rods
• Hydrodynamic equations for self-propelled particles: microscopic derivation and stability analysis
• Pattern formation in self-propelled particles with density-dependent motility
• Minimal model for active nematics: quasi-long-range order and giant fluctuations
• Persistent Cell Motion in the Absence of External Signals: A Search Strategy for Eukaryotic Cells
• Hydrodynamics of self-propelled hard rods
• Mode Selection in the Spontaneous Motion of an Alcohol Droplet
• Swimming speeds of filaments in nonlinearly viscoelastic fluids
• Traffic jams, gliders, and bands in the quest for collective motion
• Cluster dynamics and cluster size distributions in systems of self-propelled particles
• Dumb-bell swimmers
• Cortical Factor Feedback Model for Cellular Locomotion and Cytofission
• A simple self-organized swimmer driven by molecular motors
• Phase diagram of Gaussian-core nematics

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• Intermittent direction reversals of moving spatially-localized turbulence observed in two-dimensional Kolmogorov flow
• Swinging Motion of Active Deformable Particles in Poiseuille Flow
• Dynamics of Deformable Active Particles under External Flow Field
• Channel flows of deformable nematics