The scaling limit of the correlation of holes on the triangular lattice with periodic boundary conditions

Details The scaling limit of the correlation of holes on the triangular lattice with periodic boundary conditions The scaling limit of the correlation of holes on the triangular lattice with periodic boundary conditions

2005-01-28

arxiv.org/abs/math-ph/0501071v3

Physics

Mathematical Physics

Theorem 1.3 is new; discussion of previous results in the literature was expanded; 94 pages (previous version was 84 pages)

Scientific paper

We define the correlation of holes on the triangular lattice under periodic boundary conditions and study its asymptotics as the distances between the holes grow to infinity. We prove that the joint correlation of an arbitrary collection of lattice-triangular holes of even sides satisfies, for large separations between the holes, a Coulomb law and a superposition principle that perfectly parallel the laws of two dimensional electrostatics, with physical charges corresponding to holes, and their magnitude to the difference between the number of right-pointing and left-pointing unit triangles in each hole. We detail this parallel by indicating that, as a consequence of our result, the relative probabilities of finding a fixed collection of holes at given mutual distances (when sampling uniformly at random over all unit rhombus tilings of the complement of the holes) approaches, for large separations between the holes, the relative probabilities of finding the corresponding two dimensional physical system of charges at given mutual distances. Physical temperature corresponds to a parameter refining the background triangular lattice. We give an equivalent phrasing of our result in terms of covering surfaces of given holonomy. From this perspective, two dimensional electrostatics arises by averaging over all possible discrete geometries of the covering surfaces.

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