We present the results of simulations and theoretical investigations of a system of particles with a weak, long-range repulsive interaction. At fixed density the fluid phase, which is stable at high temperatures, becomes metastable and then unstable as the temperature is lowered. For low...

The approach to equilibrium at the critical temperature of the two-dimensional Ising model from an initial ordered spin configuration is investigated using the single cluster Monte Carlo dynamics introduced by Wolff. An initial configuration of all up spins and its dual, a checkerboard state,...