Shapes of semiflexible polymer rings

Karen Alim, Erwin Frey

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

The shape of semiflexible polymer rings is studied over their whole range of flexibility. Investigating the joint distribution of asphericity and the nature of asphericity as well as their respective averages, we find two distinct shape regimes depending on the flexibility of the polymer. For a small perimeter to persistence length the fluctuating rings exhibit only planar, elliptical configurations. At higher flexibilities three-dimensional, crumpled structures arise. Analytic calculations confirm the qualitative behavior of the averaged shape parameters and the elliptical shape in the stiff regime.

Original languageEnglish
Article number198102
JournalPhysical Review Letters
Volume99
Issue number19
DOIs
StatePublished - 7 Nov 2007
Externally publishedYes

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