Spatially inhomogeneous thermo field dynamics

K. Nakamura*, H. Umezawa, Y. Yamanaka

*この研究の対応する著者

研究成果査読

7 被引用数 (Scopus)

抄録

Non-equilibrium thermo field dynamics is extended to treat spatially inhomogeneous systems. A canonical formalism of thermally dissipative semi-free fields describing spatially inhomogeneous situations is presented. With this formalism, a scheme of perturbative calculations is developed and the "on-shell" renormalization condition is discussed. We illustrate this scheme using a model of particles interacting with impurities and find that the self-consistent renormalization condition gives the kinetic equation for the averaged particle number density as well as the renormalized energy and the dissipative coefficient. It is also shown that this kinetic equation can be reduced to the Boltzmann equation in the gradient expansion approximation.

本文言語English
ページ(範囲)118-136
ページ数19
ジャーナルPhysica A: Statistical Mechanics and its Applications
150
1
DOI
出版ステータスPublished - 1988 5
外部発表はい

ASJC Scopus subject areas

  • 統計学および確率
  • 凝縮系物理学

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