SoftBio Theory Seminar: Microscopic theories in active matter - effective attraction between soft repulsive run-and-tumble particles

Active matter is driven out of equilibrium at the local, microscopic scale. Numerical and experimental evidence shows that self-propelled particles that interact repulsively can separate into gas and liquid phases, a phenomenon known as motility-induced phase separation. In this talk, I will present a Doi-Peliti field theory that establishes the link between microscopic dynamics and the emergent, effective attraction between soft repulsive run-and-tumble particles. I will highlight the physical insights gained from a microscopic approach.