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Warm Inflection
Rafael Cerezo, João G. Rosa
While ubiquitous in supersymmetric and string theory models, inflationary scenarios near an inflection point in the scalar potential generically require a severe fine-tuning of a p…
Boosted black string bombs
Joao G. Rosa
We study the formation of superradiant bound states for massive scalar fields in five-dimensional rotating black string geometries with a non-vanishing Kaluza-Klein momentum along…
Gravitino cosmology in supersymmetric warm inflation
Sam Bartrum, Arjun Berera, Joao G. Rosa
In supersymmetric models of warm inflation, the large temperature of the radiation bath produced by the dissipative motion of the inflaton field may induce a significant thermal ab…
General dissipation coefficient in low-temperature warm inflation
Mar Bastero-Gil, Arjun Berera, Rudnei O. Ramos +1
In generic particle physics models, the inflaton field is coupled to other bosonic and fermionic fields that acquire large masses during inflation and may decay into light degrees…