Hybrid quintessential inflation

Mar Bastero-Gil, Arjun Berera, Brendan M. Jackson, Andy Taylor

Research output: Contribution to journalArticlepeer-review


A model is presented in which a single scalar field is responsible for both primordial inflation at early times and then dark energy at late times. This field is coupled to a second scalar field which becomes unstable and starts to oscillate after primordial inflation, thus driving a reheating phase that can create a high post-inflation temperature. This model easily avoids overproduction of gravity waves, which is a problem in the original quintessential inflation model in which reheating occurs via gravitational particle production.
Original languageEnglish
Pages (from-to)157-163
JournalPhysics Letters B
Publication statusPublished - 1 Jul 2009


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