De Corato, MarcoPagonabarraga Mora, IgnacioNatale, Giovanniantonio2022-04-062022-04-062021-06-012470-0045https://hdl.handle.net/2445/184777Polar active particles constitute a wide class of active matter that is able to propel along a preferential direction, given by their polar axis. Here, we demonstrate a generic active mechanism that leads to their spontaneous chiralization through a symmetry-breaking instability. We find that the transition of an active particle from a polar to a chiral symmetry is characterized by the emergence of active rotation and of circular trajectories. The instability is driven by the advection of a solute that interacts differently with the two portions of the particle surface and it occurs through a supercritical pitchfork bifurcation.application/pdfeng(c) American Physical Society, 2021Col·loidesQuiralitatPartícules (Matèria)ColloidsChiralityParticlesinfo:eu-repo/semantics/article7197572022-04-06info:eu-repo/semantics/openAccess