Absorbing-state phase transition in biased activated random walk
Absorbing-state phase transition in biased activated random walk
We consider the activated random walk model on $\mathbb{Z} ^d$, which undergoes a transition from an absorbing regime to a regime of sustained activity. A central question for this model involves the estimation of the critical density $\mu _c$. We prove that if the jump distribution is biased, then $\mu …