Evolution of Cosmological Perturbation in Reheating Phase of the Universe

Details Evolution of Cosmological Perturbation in Reheating Phase of the Universe Evolution of Cosmological Perturbation in Reheating Phase of the Universe

1996-09-12

arxiv.org/abs/gr-qc/9609029v1

Prog.Theor.Phys. 97 (1997) 83-89

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 1 figures

Scientific paper

10.1143/PTP.97.83

The evolution of the cosmological perturbation during the oscillatory stage
of the scalar field is investigated. For the power law potential of the
inflaton field, the evolution equation of the Mukhanov's gauge invariant
variable is reduced to the Mathieu equation and the density perturbation grows
by the parametric resonance.

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