Nonequilibrium Criticality at Shock Formation in Steady States
  The steady state shock formation in processes like nonconserving asymmetric simple exclusion processes in varied situations is shown to be a nonequilibrium critical phenomenon. The diverging length scales and the quantitative description of the transition including the phase boundary are obtained from a few general properties of the dynamics without relying on specific details. 
Sutapa Mukherji, Somendra M. Bhattacharjee