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High Energy Physics - Lattice
Title: Phase diagram of generalized XY model using tensor renormalization group
(Submitted on 26 Apr 2024)
Abstract: 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 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.
Submission history
From: Abhishek Samlodia [view email][v1] Fri, 26 Apr 2024 16:12:53 GMT (1352kb,D)
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