On Divergence of Decoherence Factor in Quantum Cosmology
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概要
- 論文の詳細を見る
To discuss the quantum to classical transition in quantum cosmology, we study the decoherence factor and the peak of the Wigner function, which respectively represent the degree of decoherence and the degree to which the classical motion of the Universe is defined, in a Roberason-Walker universe model coupled with a scalar field. It is known that the decoherence factor is divergent in some cases. This implies that perfect decoherence occurs, and classical correlation criterion fails. In this paper we discuss the divergence of the decoherence factor in somu detail and obtain the constraints for decoherence factor to be convergent, making use of the arbitrariness defining the reduced density matrix. The result is discussed in connection with the arbitrariness of system/environment splitting.
- 理論物理学刊行会の論文
- 1996-03-25
著者
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Okamura T
Department Of Physics Tokyo Institute Of Technology
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Okamura Takashi
Department Of Obstetrics And Gynecology Faculty Of Medicine University Of Tokyo At Mejirodai
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OKAMURA Takashi
Department of Physics, Tokyo Insititute of Technology
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OKAMURA Takashi
Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine
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Okamura Takashi
Department of Chemistry, Faculty of Science, Hokkaido University
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