Emergent ultra-long-range interactions between active particles in hybrid active-inactive systems.

ABSTRACT: Particle-particle interactions determine the state of a system. Control over the range of such interactions as well as their magnitude has been an active area of research for decades due to the fundamental challenges it poses in science and technology. Very recently, effective interactions between active particles have gathered much attention as they can lead to out-of-equilibrium cooperative states such as flocking. Inspired by nature, where active living cells coexist with lifeless objects and structures, here we study the effective interactions that appear in systems composed of active and passive mixtures of colloids. Our systems are 2D colloidal monolayers composed primarily of passive (inactive) colloids, and a very small fraction of active (spinning) ferromagnetic colloids. We find

SUBMITTER: Steimel JP 

PROVIDER: S-EPMC4855609 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature