Polarization of active Janus particles
Idioma
en
Article de revue
Este ítem está publicado en
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics. 2014, vol. 89, p. 050303
American Physical Society
Resumen en inglés
We theoretically study the motion of surface-active Janus particles, driven by an effective slip velocity due to a non-uniform temperature or concentration field ψ. With parameters realized in thermal traps, we find that ...Leer más >
We theoretically study the motion of surface-active Janus particles, driven by an effective slip velocity due to a non-uniform temperature or concentration field ψ. With parameters realized in thermal traps, we find that the torque exerted by the gradient ∇ψ inhibits rotational diffusion and favors alignment of the particle axes. In a swarm of active particles, this polarization adds a novel term to the drift velocity and modifies the collective behavior. Self-polarization in a non-uniform laser beam could be used for guiding hot particles along a given trajectory.< Leer menos
Orígen
Importado de HalCentros de investigación