Consider a crystal surface to which gas molecules can bind. If the surface is a d-dimensional lattice and each gas molecule covers two adjacent sites, then binding ceases when the only empty sites are singletons. This is the famous dimer problem for which the limiting proportion of occupied sites is simple to calculate only in one dimension. In this talk I shall give a general formula for the mean time until the reaction ceases for the dimer process and several others.
 

Convenor:Aidan Sudbury