Ground-state properties of tubelike flexible polymers

Details Ground-state properties of tubelike flexible polymers Ground-state properties of tubelike flexible polymers

2010-02-10

arxiv.org/abs/1002.2152v1

Eur. Phys. J. E 30, 7-18 (2009)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1140/epje/i2009-10497-3

In this work we investigate structural properties of native states of a simple model for short flexible homopolymers, where the steric influence of monomeric side chains is effectively introduced by a thickness constraint. This geometric constraint is implemented through the concept of the global radius of curvature and affects the conformational topology of ground-state structures. A systematic analysis allows for a thickness-dependent classification of the dominant ground-state topologies. It turns out that helical structures, strands, rings, and coils are natural, intrinsic geometries of such tubelike objects.

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