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arXiv · 0705.2034

Stochastic approach of gravitational waves in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity

Silvina Paola Gomez Martinez·Lucio Fabio P. da Silva·Jose Edgar Madriz Aguilar·Mauricio Bellini
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Abstract

We develop an stochastic approach to study gravitational waves produced during the inflationary epoch under the presence of a decaying cosmological parameter, on a 5D geometrical background which is Riemann flat. We obtain that the squared tensor metric fluctuations depend strongly on the cosmological parameter $Λ(t)$ and we finally illustrate the formalism with an example of a decaying $Λ(t)$.

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Silvina Paola Gomez Martinez, Lucio Fabio P. da Silva, Jose Edgar Madriz Aguilar, Mauricio Bellini. 2008-03-20. Stochastic approach of gravitational waves in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity. https://doi.org/10.1393/ncb%2Fi2007-10414-7

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