Perturbative Out of Equilibrium Quantum Field Theory beyond the Gradient Approximation and Generalized Boltzmann Equation

スポンサーリンク

概要

• 論文の詳細を見る

• Using the closed-time-path formalism, we construct perturbative frameworks, in terms of quasiparticle picture, for studying quasiuniform relativistic quantum field systems near equilibrium and non-equilibrium quasistationary systems. We employ the derivative expansion and take in up to the second-order term, i.e., one-order higher than the gradient approximation. After constructing self-energy resummed propagator, we formulated two kinds of mutually equivalent perturbative frameworks: The first one is formulated on the basis of the "bare" number density function, and the second one is formulated on the basis of "physical" number density function. In the course of construction of the second framework, the generalized Boltzmann equations directly come out, which describe the evolution of the system.

• 理論物理学刊行会の論文
• 2004-01-25

著者

• OZAKI Hideaki

  Graduate School of Science, Osaka City University

• Ozaki Hideaki

  Graduate School Of Science Osaka City University

関連論文

• Improvement of the Hot QCD Pressure by the Minimal Sensitivity Criterion (Nuclear Physics)
• Perturbative Out of Equilibrium Quantum Field Theory beyond the Gradient Approximation and Generalized Boltzmann Equation

スポンサーリンク