Fresh inflation from five-dimensional vacuum state

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

Scientific paper

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8 pages, 1 figure - to appear in Gen. Rel. Grav

Scientific paper

I study fresh inflation from a five-dimensional vacuum state, where the fifth
dimension is constant. In this framework, the universe can be seen as inflating
in a four-dimensional FRW metric embedding in a five-dimensional metric.
Finally, the experimental data $n_s=1$ are consistent with $(p+\rho_t)/\rho_t
\simeq1/3$ in the fresh inflationary scenario.

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