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 |
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ページ(範囲) | 118-136 |
ページ数 | 19 |
ジャーナル | Physica A: Statistical Mechanics and its Applications |
巻 | 150 |
号 | 1 |
DOI | |
出版ステータス | Published - 1988 5月 |
外部発表 | はい |
ASJC Scopus subject areas
- 統計学および確率
- 凝縮系物理学