Berlin 2005 – wissenschaftliches Programm
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DY: Dynamik und Statistische Physik
DY 34: Poster
DY 34.64: Poster
Montag, 7. März 2005, 15:30–18:00, Poster TU D
Nonlinear dynamics of stiff polymers — •Benedikt Obermayer1, Erwin Frey1,2, Klaus Kroy1, and Oskar Hallatschek1 — 1Abteilung Theorie, Hahn-Meitner Institut, Glienicker Str. 100, 14109 Berlin, Germany — 2Fachbereich Physik, Freie Universität,14195 Berlin, Germany
We have theoretically analyzed the anisotropic (non)linear dynamic response of stiff polymers to external driving fields. A general (time–dependent) criterion is given for the crossover from a universal linear to a nonlinear regime, the latter depending on the type of the driving. Asymptotic scaling laws are extracted from a set of coarse grained equations of motion obtained from a rigorous multiple scale analysis. To determine the precise behavior of a polymer in non–asymptotic and/or mixed scenarios occurring in vitro and in vivo, an efficient numerical algorithm has been developed which solves the corresponding partial integro differential equations.