Dynamics of anchored polymers under an oscillating force

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. © 2007 The American Physical Society.

Publication DOI: https://doi.org/10.1103/PhysRevLett.98.088101
Divisions: Engineering & Applied Sciences > Mathematics
Engineering & Applied Sciences > Systems analytics research institute (SARI)
Uncontrolled Keywords: atomic physics,computer simulation,molecular dynamics,oscillators (mechanical),random processes,stiffness,anchored polymer molecule,chaotic signatures,oscillatory forcing,stochastic simulations,organic polymers
Full Text Link: http://journals ... vLett.98.088101
http://www.scop ... 2598db70a7c9cce
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PURE Output Type: Article
Published Date: 2007-02-20
Authors: Chattopadhyay, A.K. ( 0000-0001-5499-6008)
Marenduzzo, D.

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