Exact conjectured expressions for correlations in the dense O$(1)$ loop model on cylinders

Details Exact conjectured expressions for correlations in the dense O$(1)$ loop model on cylinders Exact conjectured expressions for correlations in the dense O$(1)$ loop model on cylinders

2004-07-21

arxiv.org/abs/cond-mat/0407578v3

JSTAT (2004) P10006

Physics

Condensed Matter

Statistical Mechanics

17 pages, replaced by version accepted by JSTAT

Scientific paper

10.1088/1742-5468/2004/10/P10006

We present conjectured exact expressions for two types of correlations in the dense O$(n=1)$ loop model on $L\times \infty$ square lattices with periodic boundary conditions. These are the probability that a point is surrounded by $m$ loops and the probability that $k$ consecutive points on a row are on the same or on different loops. The dense O$(n=1)$ loop model is equivalent to the bond percolation model at the critical point. The former probability can be interpreted in terms of the bond percolation problem as giving the probability that a vertex is on a cluster that is surrounded by $\floor{m/2}$ clusters and $\floor{(m+1)/2}$ dual clusters. The conjectured expression for this probability involves a binomial determinant that is known to give weighted enumerations of cyclically symmetric plane partitions and also of certain types of families of nonintersecting lattice paths. By applying Coulomb gas methods to the dense O$(n=1)$ loop model, we obtain new conjectures for the asymptotics of this binomial determinant.

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