Canonical quantization for a relativistic neutral scalar field in non-equilibrium thermo field dynamics

Yuichi Mizutani*, Tomohiro Inagaki, Yusuke Nakamura, Yoshiya Yamanaka

*この研究の対応する著者

研究成果: Article査読

6 被引用数 (Scopus)

抄録

A relativistic neutral scalar field is investigated in non-equilibrium thermo field dynamics. The canonical quantization is applied to the fields out of equilibrium. Because the thermal Bogoliubov transformation becomes time-dependent, the equations of motion for the ordinary unperturbed creation and annihilation operators are modified. This forces us to introduce a thermal counter term in the interaction Hamiltonian which generates additional radiative corrections. Imposing the self-consistency renormalization condition on the total radiative corrections, we obtain the quantum Boltzmann equation for the relativistic scalar field.

本文言語English
ページ(範囲)681-701
ページ数21
ジャーナルProgress of Theoretical Physics
126
4
DOI
出版ステータスPublished - 2011 10

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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