Fig. 3.

Complexity and topology of flux loops. Simulations of a model microswimmer in complex geometric confinement confirm the general topological features of the flux loops. The nonequilibrium fluxes (displayed as arrows) are extracted from our active Brownian dynamics simulations. Fluxes are dominated by gradients of wall curvature. More compartment geometries are shown in SI Appendix, Fig. S4. The mathematical equations of the shown compartments A, B, and C are provided in SI Appendix, section VI.