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arXiv · hep-th/0309139

Inflation from String/M-Theory Compactification?

Ishwaree P. Neupane
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Abstract

We present some exact scalar potentials for the dimensionally reduced theory and examine the possibility of obtaining accelerating 4d cosmology from String/M-theory, more generally, hyperbolic and flux compactification. In the hyperbolic case, even in the zero-flux limit, the scalar potential is positive for the 4d effective theory as required to get an accelerating universe, and thereby evading the ``no-go theorem'' given for static internal space. When we turn on the gauge fields as source terms at the cosmological background with potential V\propto exp(-2cϕ), we find eternally accelerating cosmologies when the 4d space-time is flat and c\geq 1, or hyperbolic and 1<c<\sqrt{2}.

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Ishwaree P. Neupane. 2003-11-09. Inflation from String/M-Theory Compactification?. https://doi.org/10.1016/s0920-5632(03)02717-8

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