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Coil-Globule transition of a single short polymer chain - an exact enumeration study

M. Ponmurugan·S. L. Narasimhan·P. S. R. Krishna·K. P. N. Murthy
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Abstract

We present an exact enumeration study of short SAWs in two as well as three dimensions that addresses the question, `what is the shortest walk for which the existence of all the three phases - coil, globule and the {\it theta} - could be demonstrated'. Even though we could easily demonstrate the coil and the globule phases from Free Energy considerations, we could demonstrate the existence of a {\it theta} phase only by using a scaling form for the distribution of gyration radius. That even such short walks have a scaling behavior is an unexpected result of this work.

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M. Ponmurugan, S. L. Narasimhan, P. S. R. Krishna, K. P. N. Murthy. 2007-01-02. Coil-Globule transition of a single short polymer chain - an exact enumeration study. https://arxiv.org/abs/cond-mat/0701032

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