Article ID Journal Published Year Pages File Type
5494496 Nuclear Physics B 2017 9 Pages PDF
Abstract
The (2+1)-dimensional q=3 Potts model was simulated with the exact diagonalization method. In the ordered phase, the elementary excitations (magnons) are attractive, forming a series of bound states in the low-energy spectrum. We investigate the low-lying spectrum through a dynamical susceptibility, which is readily tractable with the exact diagonalization method via the continued-fraction expansion. As a result, we estimate the series of (scaled) mass gaps, m2,3,4/m1 (m1: single-magnon mass), in proximity to the transition point.
Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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