Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
Communication: Is directed percolation in colloid-polymer mixtures linked to dynamic arrest?
Using computer simulations, we study the dynamic arrest in a schematic model of colloid-polymer mixtures combining short-ranged attractions with long-ranged repulsions. The arrested gel is a dilute rigid network of colloidal particles bonded due to the strong attractions. Without repulsions, the gel forms at the spinodal through arrested phase separation. …