Is Kaniadakis $\kappa$-generalized statistical mechanics general?

Abstract

In this Letter we introduce some field-theoretic approach for computing the critical properties of systems undergoing continuous phase transitions governed by the $\kappa$-generalized statistics, namely $\kappa$-generalized statistical field theory. In particular, we show, by computations through analytic and simulation results, that the $\kappa$-generalized Ising-like systems are not capable of describing the nonconventional critical properties of real imperfect crystals, \emph{e. g.} of manganites, as some alternative generalized theory is, namely nonextensive statistical field theory, as shown recently in literature. Although $\kappa$-Ising-like systems do not depend on $\kappa$, we show that a few distinct systems do. Thus the $\kappa$-generalized statistical field theory is not general, \emph{i. e.} it fails to generalize Ising-like systems for describing the critical behavior of imperfect crystals, and must be discarded as one generalizing statistical mechanics. For the latter systems we present the physical interpretation of the theory by furnishing the general physical interpretation of the deformation $\kappa$-parameter.

arXiv comment19 pages, 2 figures

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