Field theoretic formulation of kinetic theory: basic development

Das, Shankar P. ; Mazenko, Gene F. (2012) Field theoretic formulation of kinetic theory: basic development Journal of Statistical Physics, 149 (4). pp. 643-675. ISSN 0022-4715

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We show how kinetic theory, the statistics of classical particles obeying Newtonian dynamics, can be formulated as a field theory. The field theory can be organized to produce a self-consistent perturbation theory expansion in an effective interaction potential. The need for a self-consistent approach is suggested by our interest in investigating ergodic-nonergodic transitions in dense fluids. The formal structure we develop has been implemented in detail for the simpler case of Smoluchowski dynamics. One aspect of the approach is the identification of a core problem spanned by the variables ρ the number density and B a response density. In this paper we set up the perturbation theory expansion with explicit development at zeroth and first order. We also determine all of the cumulants in the noninteracting limit among the core variables ρ and B.

Item Type:Article
Source:Copyright of this article belongs to Springer-Verlag.
Keywords:Kinetic Theory; Martin-Siggia-Rose (MSR) Field-theory; Ergodic-nonergodic Transition
ID Code:99424
Deposited On:28 Jul 2016 12:30
Last Modified:28 Jul 2016 12:30

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