Understanding gravitational particle production in quintessential inflation

12 Jun 2019 de Haro Jaume Pan Supriya Saló Llibert Aresté

The diagonalization method, introduced by a group of Russian scientists at the beginning of seventies, is used to compute the energy density of superheavy massive particles produced due to a sudden phase transition from inflation to kination in quintessential inflation models, the models unifying inflation with quintessence originally proposed by Peebles-Vilenkin. These superheavy particles must decay in lighter ones to form a relativistic plasma, whose energy density will eventually dominate the one of the inflaton field, in order to have a hot universe after inflation... (read more)

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  • GENERAL RELATIVITY AND QUANTUM COSMOLOGY