Critical behavior of a one-dimensional fixed-energy stochastic sandpile - art. no. 056104

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 c ontinuous transition to an absorbing state at a critical value of the parti cle density, and exhibits the hallmarks of an absorbing-state phase transit ion, including finite-size scaling. Critical exponents are obtained from ex tensive simulations, which treat stationary and transient properties, and a n associated interface representation. These exponents characterize the uni versality class of an absorbing-state phase transition with a static conser ved density in one dimension; they differ from those expected at a linear-i nterface depinning transition in a medium with point disorder, and from tho se of directed percolation.