Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1996-11-07
Phys. Rev. E 55, 3926 (1997)
Physics
Condensed Matter
Statistical Mechanics
11 pages, LaTeX, inluding 2 postscript figures
Scientific paper
10.1103/PhysRevE.55.3926
It is shown that the square-triangle random tiling model is equivalent to an asymmetric limit of the three colouring model on the honeycomb lattice. The latter model is known to be the O(n) model at T=0 and corresponds to the integrable model connected to the affine $A_2^{(1)}$ Lie algebra. Thus it is shown that the weights of the square-triangle random tiling satisfy the Yang-Baxter equation, albeit in a singular limit of a more general model. The three colouring model for general vertex weights is solved by algebraic Bethe Ansatz.
de Gier Jan
Nienhuis Bernard
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