1208.2114 (Jean-Yves Fortin et al.)

Nature of the global fluctuations in the spherical model at criticality    [PDF]

Jean-Yves Fortin, Sophie Mantelli

We study the universal nature of global fluctuations in the critical regime of the spherical model by evaluating the exact distribution of the magnetization and its absolute value in the thermodynamical limit, in the presence of a conjugate field. We show that the probability distribution function for this model is described by non-Gaussian asymptotics and non-symmetric characteristics which depend on the dimension of the system 2View original: http://arxiv.org/abs/1208.2114