title: Critical behavior of a one-dimensional fixed-energy stochastic sandpile.
abstract: We study a one-dimensional fixed-energy version (that is, with no input or loss of particles) of Manna's stochastic sandpile model. The system has a continuous transition to an absorbing state at a critical value of the particle density, and exhibits the hallmarks of an absorbing-state phase transition, including finite-size scaling. Critical exponents are obtained from extensive simulations, which treat stationary and transient properties, and an associated interface representation. These exponents characterize the universality class of an absorbing-state phase transition with a static conserved density in one dimension; they differ from those expected at a linear-interface depinning transition in a medium with point disorder, and from those of directed percolation.
authors.affiliation: Departamento de Física, ICEx, Universidade Federal de Minas Gerais, Caixa Postal 702, 30161-970 Belo Horizonte, Minas Gerais, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Dickman
authors.forename: M
authors.initials: M
authors.lastname: Alava
authors.forename: M A
authors.initials: MA
authors.lastname: Muñoz
authors.forename: J
authors.initials: J
authors.lastname: Peltola
authors.forename: A
authors.initials: A
authors.lastname: Vespignani
authors.forename: S
authors.initials: S
authors.lastname: Zapperi