论文部分内容阅读
Local inhomogeneity in totally asymmetric simple exclusion processes (TASEPs) with different hopping rates was studied.Many biological and chemical phenomena can be described by these non-equilibrium processes.A simple approximate theory and extensive Monte Carlo computer simulations were used to calculate the steady-state phase diagrams and bulk densities.It is found that the phase diagram for local inhomogeneity in TASEP with different hopping rates p is qualitatively similar to homogeneous models.Interestingly,there is a saturation point pair (α*,β*) for the system,which is decided by parameters p and q.There are three stationary phases in the system,when parameter p is fixed (i.e.,p=0.8),with the increase of the parameter q,the region of LD/LD and HD/HD phase increases and the HD/LD is the only phase which the region shrinks.The analytical results are in good agreement with simulations.