title: Weakly anomalous diffusion with non-Gaussian propagators.
abstract: A poorly understood phenomenon seen in complex systems is diffusion characterized by Hurst exponent H ≈ 1/2 but with non-Gaussian statistics. Motivated by such empirical findings, we report an exact analytical solution for a non-Markovian random walk model that gives rise to weakly anomalous diffusion with H = 1/2 but with a non-Gaussian propagator.
authors.affiliation: Departamento de Física e Química, FCFRP, Universidade de São Paulo, Ribeirão Preto, SP 14040-903, Brazil.
authors.forename: J C
authors.initials: JC
authors.lastname: Cressoni
authors.forename: G M
authors.initials: GM
authors.lastname: Viswanathan
authors.forename: A S
authors.initials: AS
authors.lastname: Ferreira
authors.forename: M A A
authors.initials: MA
authors.lastname: da Silva