Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2010-08-06
Physics
Condensed Matter
Statistical Mechanics
5 pages, 3 figures, 1 table
Scientific paper
We address the geometrical critical behavior of the two-dimensional Q-state Potts model in terms of the spin clusters (i.e., connected domains where the spin takes a constant value). These clusters are different from the usual Fortuin-Kasteleyn clusters, and are separated by domain walls that can cross and branch. We develop a transfer matrix technique enabling the formulation and numerical study of spin clusters even when Q is not an integer. We further identify geometrically the crossing events which give rise to conformal correlation functions. This leads to an infinite series of fundamental critical exponents h_{l_1-l_2,2 l_1}, valid for 0 - Q - 4, that describe the insertion of l_1 thin and l_2 thick domain walls.
Dubail Jerome
Jacobsen Jesper Lykke
Saleur Hubert
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