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Abstract: We construct an explicit scenario whereby the same material driving inflationin the early Universe can comprise dark matter in the present Universe, using asimple quadratic potential. Following inflation and preheating, the density ofinflaton-dark matter particles is reduced to the observed level by a period ofthermal inflation, of a duration already invoked in the literature for otherreasons. Within the context of the string landscape, one can further argue fora non-zero vacuum energy of this field, thus unifying inflation, dark matterand dark energy into a single fundamental field.



Author: Andrew R. Liddle, Cédric Pahud, L. Arturo Ureña-López

Source: https://arxiv.org/







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