FIG. 5.
Schematic of flows and isocommittor surfaces. Steady-state current flow lines (solid lines with arrows) and committor isosurfaces (dashed lines) are shown in a bounded domain with source (A) and sink (B) states. As discussed in the text, no component of the steady-state current can flow along isocommittor surfaces, which also must exhibit the equilibrium distribution, when suitable boundary conditions are enforced.