Gravitational waves during inflation in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity

Details Gravitational waves during inflation in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity Gravitational waves during inflation in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity

2007-03-30

arxiv.org/abs/gr-qc/0703156v3

Phys.Lett.B649:343-348,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

accepted in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2007.04.043

We study gravitational waves generated during the inflationary epoch in
presence of a decaying cosmological parameter on a 5D geometrical background
which is Riemann flat. Two examples are considered, one with a constant
cosmological parameter and the second with a decreasing one.

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