title: Influence of non-universal effects on dynamical scaling in driven polymer translocation.
abstract: We study the dynamics of driven polymer translocation using both molecular dynamics (MD) simulations and a theoretical model based on the non-equilibrium tension propagation on the cis side subchain. We present theoretical and numerical evidence that the non-universal behavior observed in experiments and simulations are due to finite chain length effects that persist well beyond the relevant experimental and simulation regimes. In particular, we consider the influence of the pore-polymer interactions and show that they give a major contribution to the non-universal effects. In addition, we present comparisons between the theory and MD simulations for several quantities, showing extremely good agreement in the relevant parameter regimes. Finally, we discuss the potential limitations of the present theories.
authors.affiliation: Department of Applied Physics and COMP Center of Excellence, Aalto University School of Science, P.O. Box 11000, FI-00076 Aalto, Espoo, Finland.
authors.forename: T
authors.initials: T
authors.lastname: Ikonen
authors.forename: A
authors.initials: A
authors.lastname: Bhattacharya
authors.forename: T
authors.initials: T
authors.lastname: Ala-Nissila
authors.forename: W
authors.initials: W
authors.lastname: Sung
mesh_terms: D056004:Molecular Dynamics Simulation; D011108:Polymers / Q000737:chemistry*
chemical_list: D011108:Polymers