Exact critical points of the O($n$) loop model on the martini and the 3-12 lattices

Chengxiang Ding; Zhe Fu; Wenan Guo

doi:10.1103/physreve.85.062101

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arXiv · 1202.5623

Exact critical points of the O($n$) loop model on the martini and the 3-12 lattices

Chengxiang Ding·Zhe Fu·Wenan Guo

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Abstract

We derive the exact critical line of the O($n$) loop model on the martini lattice as a function of the loop weight $n$.A finite-size scaling analysis based on transfer matrix calculations is also performed.The numerical results coincide with the theoretical predictions with an accuracy up to 9 decimal places. In the limit $n\to 0$, this gives the exact connective constant $μ=1.7505645579...$ of self-avoiding walks on the martini lattice. Using similar numerical methods, we also study the O($n$) loop model on the 3-12 lattice. We obtain similarly precise agreement with the exact critical points given by Batchelor [J. Stat. Phys. 92, 1203 (1998)].

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Chengxiang Ding, Zhe Fu, Wenan Guo. 2012-03-14. Exact critical points of the O($n$) loop model on the martini and the 3-12 lattices. https://doi.org/10.1103/physreve.85.062101

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