%0 Journal Article
%T Additivity property and emergence of power laws in nonequilibrium steady states
%A Arghya Das
%A Sayani Chatterjee
%A Punyabrata Pradhan
%A P. K. Mohanty
%J Physics
%D 2015
%I arXiv
%R 10.1103/PhysRevE.92.052107
%X We show that an equilibriumlike additivity property can remarkably lead to power-law distributions observed frequently in a wide class of out-of-equilibrium systems. The additivity property can determine the full scaling form of the distribution functions and the associated exponents. The asymptotic behavior of these distributions is solely governed by branch-cut singularity in the variance of subsystem mass. To substantiate these claims, we explicitly calculate, using the additivity property, subsystem mass distributions in a wide class of previously studied mass aggregation models as well as in their variants. These results could help in the thermodynamic characterization of nonequilibrium critical phenomena.
%U http://arxiv.org/abs/1506.04647v2