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We examine run and tumble disks in two-dimensional systems where theparticles also have a Magnus component to their dynamics. For increasedactivity, we find that the system forms a motility-induced phase-separated(MIPS) state with chiral edge flow around the clusters, where the direction ofthe current is correlated with the sign of the Magnus term. The stability ofthe MIPS state is non-monotonic as a function of increasing Magnus termamplitude, with the MIPS region first extending down to lower activitiesfollowed by a break up of MIPS at large Magnus amplitudes into a gel-likestate. We examine the dynamics in the presence of quenched disorder and auniform drive, and find that the bulk flow exhibits a drive-dependent Hallangle. This is a result of the side jump effect produced by scattering from thepinning sites, and is similar to the behavior found for skyrmions in chiralmagnets with quenched disorder.

Phase Separation, Edge Currents, and Hall Effect for Active Matter with Magnus Dynamics