Anomalous tricritical behaviour in the coil-globule transition of a single polymer chain

Annick Lesne; Jean-Marc Victor

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Anomalous tricritical behaviour in the coil-globule transition of a single polymer chain

Annick Lesne·Jean-Marc Victor

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Abstract

We investigate a model of self-avoiding walk exhibiting a first-order coil-globule transition. This first-order nature, unravelled through the coexistence of distinct coil and globule populations, has observable consequences on the scaling properties. A thorough analysis of the size dependence of the mean radius of gyration evidences a breakdown of the plain tricritical scaling behaviour. In some regimes, anomalous exponents are observed in the transition region and logarithmic corrections arise along the coexistence curve.

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Annick Lesne, Jean-Marc Victor. 2000-05-02. Anomalous tricritical behaviour in the coil-globule transition of a single polymer chain. https://arxiv.org/abs/cond-mat/0005049

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