Comment on the choice of time in a two-component formulation of the Wheeler--DeWitt equation
classification
🌀 gr-qc
hep-thmath-phmath.MP
keywords
timechoicetwo-componentappearancecommentcosmologyeigenvaluesemphasis
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The two-component formalism in quantum cosmology is revisited with a particular emphasis on the identification of time. Its relation with the appearance of imaginary eigenvalues is established. It is explicitly shown how a good choice of the global time prevents this peculiarity.
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