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Decaying cosmological parameter in the early universe from NKK theory of gravity

Mauricio Bellini
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Abstract

Using a formalism recently introduced we study the decaying of the cosmological parameter during the early evolution of an universe, whose evolution is governed by a vacuum equation of state. We use a stochastic approach in a nonperturbative treatment of the inflaton field from a Noncompact Kaluza-Klein (NKK) theory, to study the evolution of energy density fluctuations in the early universe.

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Mauricio Bellini. 2005-11-15. Decaying cosmological parameter in the early universe from NKK theory of gravity. https://doi.org/10.1016/j.physletb.2005.11.039

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