Supersymmetric inflation and large-scale structure

Details Supersymmetric inflation and large-scale structure Supersymmetric inflation and large-scale structure

1996-10-04

arxiv.org/abs/hep-ph/9610248v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages (revtex) including 6 figures (epsf, rotate); Invited talk at the Inauguration Conference of the Asia Pacific Center f

Scientific paper

In effective supergravity theories following from the superstring, a modulus field can quite naturally set the neccessary initial conditions for successful cosmological inflation to be driven by a hidden sector scalar field. The leading term in the scalar potential is {\em cubic} hence the spectrum of scalar density perturbations neccessarily deviates from scale-invariance, while the generation of gravitational waves is negligible. The growth of large-scale structure is then consistent with observational data assuming a critical density cold dark matter universe, with no need for a component of hot dark matter. The model can be tested thorough measurements of cosmic microwave background anisotropy on small angular scales.

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