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- W1995461937 abstract "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 Robertson-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 some 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." @default.
- W1995461937 created "2016-06-24" @default.
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- W1995461937 date "1996-03-01" @default.
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- W1995461937 title "On Divergence of Decoherence Factor in Quantum Cosmology" @default.
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- W1995461937 doi "https://doi.org/10.1143/ptp.95.565" @default.
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