Phase separation driven by surface diffusion: a Monte Carlo study
  We propose a kinetic Ising model to study phase separation driven by surface diffusion. This model is referred to as "Model S", and consists of the usual Kawasaki spin-exchange kinetics ("Model B") in conjunction with a kinetic constraint. We use novel multi-spin coding techniques to develop fast algorithms for Monte Carlo simulations of Models B and S. We use these algorithms to study the late stages of pattern dynamics in these systems. 
S. van Gemmert (ITP, UU), G.T. Barkema (ITP, UU) and Sanjay Puri (JNU)