Pulling self-interacting polymers in two-dimensions

Details Pulling self-interacting polymers in two-dimensions Pulling self-interacting polymers in two-dimensions

2008-12-09

arxiv.org/abs/0812.1614v1

Physics

Condensed Matter

Statistical Mechanics

20 pages, 22 figures

Scientific paper

10.1103/PhysRevE.79.031912

We investigate a two-dimensional problem of an isolated self-interacting end-grafted polymer, pulled by one end. In the thermodynamic limit, we find that the model has only two different phases, namely a collapsed phase and a stretched phase. We show that the phase diagram obtained by Kumar {\it at al.\} [Phys. Rev. Lett. {\bf 98}, 128101 (2007)] for small systems, where differences between various statistical ensembles play an important role, differ from the phase diagram obtained here in the thermodynamic limit.

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