A microscopic field theoretical approach for binary mixtures of active and passive particles

We consider a phase field crystal modeling approach for binary mixtures of interacting active and passive particles. The approach allows to describe generic properties for such systems within a continuum model. We validate the approach by reproducing experimental results, as well as results obtained with agent-based simulations, for the whole spectrum from highly dilute suspensions of passive particles to interacting active particles in a dense background of passive particles.