DYNAMICAL MODES OF POLYMER TRANSLOCATING THROUGH INTERACTING PORE UNDER CHEMICAL POTENTIAL DIFFERENCE

The translocation of polymer chain through an interacting pore under chemical potential difference Delta mu is simulated using Monte Carlo technique. Three translocation modes, dependent on the polymer-pore interaction epsilon and Delta mu, are discovered. The translocation process is found to be an nonequilibrium process, which influences the dependence of translocation time tau on epsilon and Delta mu. It is found that tau decreases in a power law relation with the increase of Delta mu, and the exponent is dependent on the interaction.