NONEQUILIBRIUM DENSITY PROFILES OF DEPOSITION-EVAPORATION STOCHASTIC-SYSTEMS

We investigate the nonequilibrium kinetics of deposition and evaporati on of dimers in bipartite lattices. For equal deposition-evaporation r ates a quantum spin analogy enables one to describe the dimer stochast ic evolution in terms of the isotropic spin-1/2 Heisenberg ferromagnet . This allows for an exact solution of nonequilibrium density profiles in higher dimensions starting from initially unstable states. It is s hown that these systems exhibit diffusive behavior and how the interpl ay between jamming and dimensionality determines the type of asymptoti c equilibration kinetics.