Reheating of the universe after inflation with f(phi)R gravity

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dc.creatorWatanabe, Yuki
dc.creatorKomatsu, Eiichiro
dc.date2006-12-19
dc.date2008-04-16
dc.date.accessioned2026-07-07T11:21:36Z
dc.date.available2026-07-07T11:21:36Z
dc.descriptionWe show that reheating of the universe occurs spontaneously in a broad class of inflation models with f(phi)R gravity (phi is inflaton). The model does not require explicit couplings between phi and bosonic or fermionic matter fields. The couplings arise spontaneously when phi settles in the vacuum expectation value (vev) and oscillates, with coupling constants given by derivatives of f(phi) at the vev and the mass of resulting bosonic or fermionic fields. This mechanism allows inflaton quanta to decay into any fields which are not conformally invariant in f(phi)R gravity theories.
dc.description4 pages, (v2) references added, (v3) revised to have inflaton quanta canonically normalized
dc.identifierhttps://arxiv.org/abs/gr-qc/0612120
dc.identifierhttp://arxiv.org/abs/gr-qc/0612120
dc.identifierPhys.Rev.D75:061301,2007
dc.identifierdoi:10.1103/PhysRevD.75.061301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194313
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleReheating of the universe after inflation with f(phi)R gravity
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