Weakly disordered absorbing-state phase transitions.
The effects of quenched disorder on nonequilibrium phase transitions in the directed percolation universality class are revisited. Using a strong-disorder energy-space renormalization-group method, it is shown that for any amount of disorder the critical behavior is controlled by an infinite-randomness fixed point in the same universality class of the random transverse-field Ising models.
Hoyos
José A
JA
Department of Physics, Missouri University of Science and Technology, Rolla, Missouri 65409, USA.