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Article overview
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Fluctuating semiflexible polymer ribbon constrained to a ring | | Karen Alim
; Erwin Frey
; | | Date: |
1 Aug 2007 | | Abstract: | Twist stiffness and an asymmetric bending stiffness of a polymer or a polymer
bundle is captured by the elastic ribbon model. We investigate the effects a
ring geometry induces to a thermally fluctuating ribbon, finding bend-bend
coupling in addition to twist-bend coupling. Furthermore, due to the geometric
constraint the polymer’s effective bending stiffness increases. A new parameter
for experimental investigations of polymer bundles is proposed: the mean square
diameter of a ribbonlike ring, which is determined analytically in the
semiflexible limit. Monte Carlo simulations are performed which affirm the
model’s prediction up to high flexibility. | | Source: | arXiv, 0708.0111 | | Services: | Forum | Review | PDF | Favorites | |
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