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

MAURICIO BELLINI

PHYSICS LETTERS B

Elsevier Science

Lugar: Amsterdam; Año: 2006 vol. 632 p. 610 - 616

0370-2693

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.