Semiflexible polymers in a random environment

Details Semiflexible polymers in a random environment Semiflexible polymers in a random environment

2004-05-24

arxiv.org/abs/cond-mat/0405562v1

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 3 figures, Revtex4

Scientific paper

10.1063/1.1783272

We present using simple scaling arguments and one step replica symmetry breaking a theory for the localization of semiflexible polymers in a quenched random environment. In contrast to completely flexible polymers, localization of semiflexible polymers depends not only on the details of the disorder but also on the ease with which polymers can bend. The interplay of these two effects can lead to the delocalization of a localized polymer with an increase in either the disorder density or the stiffness. Our theory provides a general criterion for the delocalization of polymers with varying degrees of flexibility and allows us to propose a phase diagram for the highly folded (localized) states of semiflexible polymers as a function of the disorder strength and chain rigidity.

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