Inflationary cosmology from STM theory of gravity
arXiv:hep-ph/0206168 · doi:10.1016/S0550-3213(03)00234-7
Abstract
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 . In power-law expansion, the fifth coordinate appears to be a dimensionless constant. The interesting here is that the -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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