Aggregation and Physicochemical Structure Formation

Abstract

This chapter marks a next step in our strategy to add complexity gradually to our concept of Brownian agents. So far, we have generalized the idea of Brownian particles (see Sect. 1.3) in Chap. 2 by considering an additional internal degree of freedom, i.e., an internal energy depot of the particles that can be used to take up, store, and transfer energy into motion. In this way, a simplified model of active biological motion can be derived — but we should note again that in this way only a rather simple type of “agent” has been introduced that has been therefore denoted as a particle agent, or active particle for simplicity.