Conserved lattice gas model with infinitely many absorbing states in one dimension

The conserved lattice gas model with infinitely many absorbing states is studied on a chain and on a ladder. In both one-dimensional lattices it exhibits a phase transition from an absorbing phase to an active state. The model defined on a chain is solved exactly and shows a critical behavior with classical critical exponents. However, the model defined on a ladder shows a critical behavior, obtained from numerical simulation, that places the model in the same universality class as the Manna model.