Boom and bust inflation: a graceful exit via compact extra dimensions

Journal Article

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Phys Rev Lett

Phys.Rev.Lett.

101

221302

ID: 19113473

Unknown(0)

A model of inflation is proposed in which compact extra dimensions allow a graceful exit without recourse to flat potentials or super-Planckian field values. Though bubbles of true vacuum are too sparse to uniformly reheat the Universe by colliding with each other, a compact dimension enables a single bubble to uniformly reheat by colliding with itself. This mechanism, which generates an approximately scale invariant perturbation spectrum, requires that inflation be driven by a bulk field, that vacuum decay be slow, and that the extra dimension be at least a hundred times larger than the false vacuum Hubble length.

http://pesquisa.bvsalud.org/ghl/resource/en/mdl-19113473

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Brown,Adam R.

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2008