Mode-Coupling Theory for Active Brownian Particles

Applicant Professor Dr. Thomas Voigtmann
Subject Area Statistical Physics, Nonlinear Dynamics, Complex Systems, Soft and Fluid Matter, Biological Physics
Term from 2014 to 2021
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 255128594
 

Project Description

A microscopic theory for the dynamics of dense active Brownian particle (ABP) systems, based on the integration-through-transients (ITT) formalism and the mode-coupling theory of the glass transition (MCT), is evaluated to obtain quantities characterizing the non-equilibrium steady state of ABP, such as the coarse-grained density- and activity-dependent swim velocity, the swim pressure tensor, and the activity-dependent static structure factor. The asymptotic behavior of these quantities close to the glass transitionwill be derived. An extension to slightly anisotropic particles is considered in order to understand the activity dependence of translation-rotation coupling in dense ABP.
DFG Programme Priority Programmes
Subproject of SPP 1726:  Microswimmers - From Single Particle Motion to Collective Behaviour