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

Abstract

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 $\varphi$-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.

(final version) to be published in EPJC

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Cited by in corpus (6)

• Gauge-invariant metric fluctuations from NKK theory of gravity: de Sitter expansion
• Inflaton field governed universe from NKK theory of gravity: stochastic approach
• Extra force and extra mass from noncompact Kaluza-Klein theory in a cosmological model
• Inflaton and metric fluctuations in the early universe from a 5D vacuum state
• Passing to an effective 4D phantom cosmology from 5D vacuum theory of gravity
• Induced inflation from a 5D purely kinetic scalar field formalism on warped product spaces