Origin of FRW cosmology in slow-roll inflation from noncompact Kaluza-Klein theory

Details Origin of FRW cosmology in slow-roll inflation from noncompact Kaluza-Klein theory Origin of FRW cosmology in slow-roll inflation from noncompact Kaluza-Klein theory

2004-02-24

arxiv.org/abs/gr-qc/0402108v6

Eur.Phys.J. C38 (2004) 123-128

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

(final version) to be published in EPJC

Scientific paper

10.1140/epjc/s2004-02024-y

Using a recently introduced formalism we discuss slow-roll inflaton from Kaluza-Klein theory without the cylinder condition. In particular, some examples corresponding to polynomic and hyperbolic $\phi$-potentials are studied. We find that the evolution of the fifth coordinate should be determinant for both, the evolution of the early inflationary universe and the quantum fluctuations.

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