Escape from Metastability via Aging: Non-Equilibrium Dynamics in a One-   Dimensional Ising Model
  The non-equilibrium dynamics of a one-dimensional Ising model with uniform, short-ranged three-spin interactions is investigated. It is shown that this model possesses an exponentially large number of metastable configurations that are stable against single spin flips. This glass-like situation results in a complete freezing of the system at low temperatures for times smaller than an intrinsic time-scale, which diverges exponentially with inverse temperature. Via thermal activation the system eventually escapes from this frozen state, which is signals the onset of aging by domain growth. 
J. Kisker H. Rieger and M. Schreckenberg