Yang-Lee and Fisher zeros generalized on some far-from-equilibrium systems

A generalization of the Yang-Lee and Fisher zeros on far-from-equilibrium systems coupled with two thermal baths is proposed. The Yang-Lee zeros were obtained for minimal models which exhibit complicated behavior in the context of the partition function zeros and provide an analitycal treatment. This type of models may be considered as a simplest one and analogous to Ising model for equilibrium. The obtained distributions of generalized Yang-Lee zeros show nontrivial behavior for these simple models.