Line Plot from Scientific Research

A pure entropy imbalance induces currents of particles which are dominated by the nonlinear advective mode at early time and the linear diffusive mode at long times. For strong confinement (red) the system reaches a non-equilibrium steady state which persists beyond the experimentally accessible time, indicating the decoupling of advective and diffusive entropy transport. Reducing the confinement facilitates the diffusive mode, allowing equilibration and reducing the maximal response.

DOI