Topological constraints on polymer rings and critical indices
- 1 January 1979
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 40 (7), 665-670
- https://doi.org/10.1051/jphys:01979004007066500
Abstract
Ring polymers in two and three dimensions have been simulated by closed Gaussian random walks. The effects of topological constraints is studied. In two dimensions, the non self crossing condition leads to an excluded volume effect and the critical index v so observed is in good agreement with the predictions of the renormalization group theory. In three dimensions, the condition of absence of knots should lead to new effects. However, it is observed that the probability of knot formation increases very slowly with the number of segments and consequently no comparable estimate could be made of any critical indexKeywords
This publication has 2 references indexed in Scilit:
- Statistical mechanics with topological constraints: IProceedings of the Physical Society, 1967
- Topological invariants of knots and linksTransactions of the American Mathematical Society, 1928