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Abstract: We examine the possibility of achieving quintessential inflation, where thesame field serves as both inflaton and quintessence, in the context of afive-dimensional braneworld. Braneworld cosmology provides an appropriateenvironment as it permits inflation with much steeper potentials than theconventional scenario, which is favourable to a late-time quintessence. Weexplore a wide space of models, together with contemporary observational data,to determine in which contexts such a picture is possible. We find that such ascenario, although attractive, is in fact impossible to achieve for thepotentials studied due to the restrictiveness of current data.



Author: Mafalda Dias, Andrew R Liddle

Source: https://arxiv.org/







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