Regensburg 2025 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 3: Active Matter I (joint session DY/BP/CPP)

DY 3.8: Talk

Monday, March 17, 2025, 11:45–12:00, H37

‘Predator-prey’ driven swarmalator systems — •Ginger E. Lau, Mario U. Gaimann, and Miriam Klopotek — Stuttgart Center for Simulation Science (SimTech), Cluster of Excellence EXC 2075, University of Stuttgart, Germany

Swarmalators are an active matter system of oscillators which exhibit swarming and collective motion in physical space, as well as synchronization behavior in an additional phase variable space, originally introduced by O’Keeffe et al. (Nat. Commun. 8(1), 1504, 2017). Such systems with bidirectional couplings in space and phase can be observed in nature, such as in the chorusing behavior of Japanese tree frogs characterized by Aihara et al. (Sci. Rep. 4(1), 3891, 2014). The interplay between attraction, repulsion, and phase synchronization provides several distinct regimes of self-organizational behavior. Akin to biological swarm systems responding to predator interactions, swarmalators can respond collectively to external perturbations by a repulsive driver. In previous work, driving was realized with a mobile ‘pacemaker’ by Xu et al. (Chaos 34(11), 113103, 2024). The present study introduces a new ‘predator-prey’ driven swarmalator model showing rich adaptive behavior. This could have a wide variety of potential future applications, from biological physics to swarm robotics to nature-inspired learning algorithms and methods of inference.

Keywords: swarmalators; active matter; coupled oscillators; non-equilibrium dynamics