article published yes Marco Musacchio author Markus Felber author c12d7e3a-4e8f-11ef-ad48-ffba54b8aa10 Matteo Paoluzzi author Andrea Gnoli author Andrea Puglisi author Luca Angelani author ScWa department GradSch department We investigate magnetic active matter in confined geometries using both experiments with magnetic toy robots, Hexbugs, and simulations of elongated magnetic active Brownian particles in circular domains. Standard active particles tend to accumulate at boundaries, forming clusters even at relatively low densities. In the presence of magnetic interactions, we provide evidence for a effect that inhibits clustering and shifts its onset to higher packing fractions. Moreover, magnetic dipolar interactions give rise to collective behaviors such as train-like formations, rotating pairs, and rotating clusters. https://research-explorer.ista.ac.at/download/22307/22332/2026_PhysicalReviewE_Musacchio.pdf application/pdfno American Physical Society2026 eng 2470-0045 2470-0053 2511.2147210.1103/hylm-ljlf 1135 M. Musacchio, M. Felber, M. Paoluzzi, A. Gnoli, A. Puglisi, L. Angelani, Physical Review E 113 (2026). Musacchio, Marco, et al. “Fluidization Induced by Magnetic Interactions in Confined Active Matter.” <i>Physical Review E</i>, vol. 113, no. 5, 055413, American Physical Society, 2026, doi:<a href="https://doi.org/10.1103/hylm-ljlf">10.1103/hylm-ljlf</a>. Musacchio M, Felber M, Paoluzzi M, Gnoli A, Puglisi A, Angelani L. Fluidization induced by magnetic interactions in confined active matter. <i>Physical Review E</i>. 2026;113(5). doi:<a href="https://doi.org/10.1103/hylm-ljlf">10.1103/hylm-ljlf</a> M. Musacchio, M. Felber, M. Paoluzzi, A. Gnoli, A. Puglisi, and L. Angelani, “Fluidization induced by magnetic interactions in confined active matter,” <i>Physical Review E</i>, vol. 113, no. 5. American Physical Society, 2026. Musacchio M, Felber M, Paoluzzi M, Gnoli A, Puglisi A, Angelani L. 2026. Fluidization induced by magnetic interactions in confined active matter. Physical Review E. 113(5), 055413. Musacchio, Marco, Markus Felber, Matteo Paoluzzi, Andrea Gnoli, Andrea Puglisi, and Luca Angelani. “Fluidization Induced by Magnetic Interactions in Confined Active Matter.” <i>Physical Review E</i>. American Physical Society, 2026. <a href="https://doi.org/10.1103/hylm-ljlf">https://doi.org/10.1103/hylm-ljlf</a>. Musacchio, M., Felber, M., Paoluzzi, M., Gnoli, A., Puglisi, A., &#38; Angelani, L. (2026). Fluidization induced by magnetic interactions in confined active matter. <i>Physical Review E</i>. American Physical Society. <a href="https://doi.org/10.1103/hylm-ljlf">https://doi.org/10.1103/hylm-ljlf</a> 223072026-07-13T10:53:06Z2026-07-14T07:00:17Z