Author(s): Lan Bo, Jian Chen, Xichao Zhang, Yan Zhou, Chengwei Qiu, and Masahito Mochizuki Magnetic skyrmions (MSks) and optical skyrmions (OSks) embody topology in matter and in light, respectively. Here we investigate the interaction between a single MSk and an OSk beam. Three distinct nonlinear dynamical modes are identified: rotation, skipping, and trochoidal motion. By decomposing th… [Phys. Rev. Lett. 137, 126701] Published Mon Sep 14, 2026