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- W3104077588 abstract "We enlarge the classes of inflaton and quintessence fields by generalizing the pseudo-Nambu–Goldstone boson potential by means of elliptic Jacobian functions, which are characterized by a parameter [Formula: see text]. We use such a generalization to implement an inflationary era and a late acceleration of the universe. As an inflationary model, the Jacobian generalization leads us to a number of e-foldings and a primordial spectrum of perturbations compatible with the Planck Collaboration 2015. As a quintessence model, a study of the evolution of its equation-of-state (EoS) and its [Formula: see text]–[Formula: see text] plane helps us to classify it as a thawing model. This allows us to consider analytical approximations for the EoS recently discovered for thawing quintessence. By using JLA supernovae Ia and Hubble parameter [Formula: see text] data sets, we perform an observational analysis of the viability of the model as quintessence." @default.
- W3104077588 created "2020-11-23" @default.
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- W3104077588 date "2017-02-03" @default.
- W3104077588 modified "2023-09-27" @default.
- W3104077588 title "A Jacobian generalization of the pseudo-Nambu–Goldstone boson potential" @default.
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- W3104077588 doi "https://doi.org/10.1142/s0218271817500195" @default.
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