Confinement of knotted polymers in a slit

Details Confinement of knotted polymers in a slit Confinement of knotted polymers in a slit

2010-10-29

arxiv.org/abs/1010.6220v1

Physics

Condensed Matter

Soft Condensed Matter

9 pages, 6 figures, submitted for publication

Scientific paper

We investigate the effect of knot type on the properties of a ring polymer confined to a slit. For relatively wide slits, the more complex the knot, the more the force exerted by the polymer on the walls is decreased compared to an unknotted polymer of the same length. For more narrow slits the opposite is true. The crossover between these two regimes is, to first order, at smaller slit width for more complex knots. However, knot topology can affect these trends in subtle ways. Besides the force exerted by the polymers, we also study other quantities such as the monomer-density distribution across the slit and the anisotropic radius of gyration.

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