Regensburg 2025 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 25: Poster: Active Matter, Soft Matter, Fluids (joint session DY/CPP)
CPP 25.1: Poster
Mittwoch, 19. März 2025, 10:00–12:00, P3
Enhanced stability and chaotic condensates in multi-species non-reciprocal mixtures — •Laya Parkavousi1, Navdeep Rana1, Ramin Golestanian1,2, and Suropriya Saha1 — 1Max Planck Institute for Dynamics and Self-Organization (MPI-DS), D-37077 Göttingen, Germany — 2Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
Random non-reciprocal interactions between a large number of conserved densities are shown to enhance the stability of the system towards pattern formation. The enhanced stability is an exact result when the number of species approaches infinity and is confirmed numerically by simulations of the multi-species non-reciprocal Cahn-Hilliard model. Furthermore, the diversity in dynamical patterns increases with increasing number of components and novel steady states such as pulsating or spatiotemporally chaotic condensates are observed. Our results may help to unravel the mechanisms by which living systems self-organise via metabolism.
Keywords: nonreciprocal interactions; pattern formation; phase separation; active matter; spatiotemporal chaos