Title: Chaotic Flows Generated by Non-Reciprocal Interactions in Dense Particle Systems
Abstract: Non-reciprocal interactions characterize many physical systems and have been studied long before the recent surge of interest in the active matter community. In the context of disordered systems, their relevance was first motivated by an analogy between spin glasses and neural networks, where the competition between non-reciprocity and the spin glass phase was shown to give rise to chaotic dynamics. Here, I revisit this competition and investigate whether amorphous phases of matter can resist the presence of non-reciprocal interactions using an off-lattice particle model. I will show that a phase transition exists between an arrested glassy phase and a chaotic phase, and will characterize the criticality emerging at the transition. Finally, I will demonstrate that the chaotic phase exhibits similarities with mesoscale flows observed in other active turbulent systems.
Note: This seminar will be happening in-person only.
Location: Huxley 145, 15.00-16.00.