Inflationary cosmology from STM theory of gravity

Details Inflationary cosmology from STM theory of gravity Inflationary cosmology from STM theory of gravity

2002-06-18

arxiv.org/abs/hep-ph/0206168v3

Nucl.Phys.B660:389-400,2003; Erratum-ibid.B671:501,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

final version

Scientific paper

10.1016/S0550-3213(03)00234-7

I study the power-law and de Sitter expansions for the universe during inflation from the STM theory of gravity. In a de Sitter expansion the additional dimension is related to the cosmological constant. I find from experimental data that the mass of the inflaton field is $m^2=2/(3\Psi^2)$. In power-law expansion, the fifth coordinate appears to be a dimensionless constant. The interesting here is that the $\Psi$-value depends on the initial conditions. I find the 5D line element for this inflationary expansion, which is a function of the classical component of the inflaton.

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