Bazhanov, Vladimir; Mangazeev, Vladimir; Sergeev, Sergey
The Faddeev-Volkov solution of the star-triangle relation is connected with the modular double of the quantum group Uq (sl2). It defines an Ising-type lattice model with positive Boltzmann weights where the spin variables take continuous values on the real line. The free energy of the model is exactly calculated in the thermodynamic limit. The model describes quantum fluctuations of circle patterns and the associated discrete conformal transformations connected with the Thurston's discrete...[Show more]
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