Persistent structures in phase-ordering kinetics

Pictures of persistent structures for the 2D Diffusion equation. The blue regions have always been positive, the red regions have always been negative.

t=200 t=800 t=3200


The following pictures illustrate the same phenomena for the time-dependent Ginzburg-Landau equation:

t=400 t=1600 t=6400


Similar pictures for the 2D Ising model (Glauber dynamics) evolving at zero temperature.

t=40 t=160 t=640