Evolution from Pure States into Mixed States in de Sitter Space

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概要

• 論文の詳細を見る

• An attempt is made to clarify realization of a classical distribution from quantum fluctuations of the order parameter in the inflationary universe. We discuss destrction of quantum coherence associated with a state of the order parameter in models where it interacts with the environment. For that purpose, the time evolution of the reduced density matrix ρ, which is obtained by coarse-graining of the environment, is investigated. It is shown that off-diagonal elements of ρ decreased as the phase transition proceeds.

• 理論物理学刊行会の論文
• 1988-02-25

著者

• Sakagami Masa-aki

  Research Institute For Fundamental Physics Kyoto University

関連論文

• Evolution from Pure States into Mixed States in de Sitter Space

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