Vortex corrections to universal scaling of magnetic fluctuations in 2D XY model
arXiv:cond-mat/0207482 · doi:10.1016/S0378-4371(02)01003-8
Abstract
The vortex contribution to the probability density function of longitudinal magnetization fluctuations is examined in finite 2D XY systems close to the Kosterlitz-Thouless-Berezinskii transition temperature. Within the temperature range studied their relevance is limited to rare fluctuations, where they increase the probability of events exceeding four standard deviations below the mean magnetization.
6 pages, 4 figures. Refs added