Dynamics of an anchored polymer molecule under an oscillating force |
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Authors: | Chattopadhyay A K Marenduzzo D |
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Affiliation: | Dipartimento di Fisica G. Galilei, Universitá degli Studi di Padova, via Marzolo 8, 35131 Padua, Italy. |
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Abstract: | We study the dynamics of a polymer of varying stiffness, pinned or grafted at both ends and subjected to an oscillatory forcing at an intermediate point. Via stochastic simulations, we find a crossover from a periodic limit cycle to an aperiodic dynamics as the polymer gets "stiffer." An analytical argument valid in the 2D grafted case shows that in such a case this aperiodic dynamics has some chaotic signatures. |
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