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

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

2005-10-25

arxiv.org/abs/gr-qc/0510110v2

Phys.Lett. B632 (2006) 610-616

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

version accepted in Physics Letters B

Scientific paper

10.1016/j.physletb.2005.11.039

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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