Gauge-Invariant Scalar Perturbations in the New Inflationary Universe
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概要
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The time evolution of scalar perturbations in the new inflationary universe is investigated by using an extended version of Bardeen's gauge-invariant formulation. We show that depending on the matter contents of the background space-time the existence of exponentially expanding stage either gives rise to large amplitude density perturbations or results in the amplification of initially existing perturbations. Then, for the universe which was homogeneous enough at small scales, we discuss the possibility of generating density perturbations from fluctuations associated with the cosmological particle creation.
- 理論物理学刊行会の論文
- 1983-08-25
著者
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Sasaki Misao
Research Institute For Fundamental Physics Kyoto University
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SASAKI Misao
Department of Earth and Space Science, Graduate School of Science Osaka University
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SASAKI Misao
Research Institute for Fundamental Physics, Kyoto University
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