Dynamical diagram and scaling in polymer driven translocation
Department of Physics, Kyushu University 33, 812-8581, Fukuoka, Japan
2 PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, 332-0012, Saitama, Japan
Revised: 21 October 2011
Accepted: 5 December 2011
Published online: 28 December 2011
By analyzing the real space non-equilibrium dynamics of polymers, we elucidate the physics of driven translocation and propose its dynamical scaling scenario analogous to that in the surface growth phenomena. We provide a detailed account of the previously proposed tension-propagation formulation and extend it to cover the broader parameter space relevant to real experiments. In addition to a near-equilibrium regime, we identify three distinct non-equilibrium regimes reflecting the steady-state property of a dragged polymer with finite extensibility. Finite-size effects are also pointed out. These elements are shown to be crucial for the appropriate comparison with experiments and simulations.
© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011