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Phase diagram of generalized XY model using tensor renormalization group
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Phase diagram of generalized XY model using tensor renormalization group
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We use the higher-order tensor renormalization group method to study the two-dimensional generalized XY model that admits integer and half-integer vortices. This model is the deformation of the classical XY model and has a rich phase structure consisting of nematic, ferromagnetic, and disordered phases and three transition lines belonging to the Berezinskii-Kosterlitz-Thouless (BKT) and Ising class. We explore the model for a wide range of temperatures, $T$, and the deformation parameter, $\Delta$, and compute specific heat along with integer and half-integer magnetic susceptibility, finding both BKT-like and Ising-like transitions and the region where they meet.
Forward citations
Cited by 2 Pith papers
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Tensor renormalization group approach to critical phenomena via symmetry-twisted partition functions
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