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- W1993497981 abstract "Recently, attempts have been made to understand the apparent near coincidence of the present dark energy and matter energy in terms of a dynamical attractor-like solution for the evolution of a ``quintessence'' scalar field. In these models the field couples with the dominant constituent and only acts like a cosmological constant after the onset of the matter-dominated epoch. A generic feature of such solutions, however, is the possibility of significant energy density in the scalar field during the radiation-dominated epoch. This possibility is even greater if the quintessence field begins in a kinetic-dominated regime generated at the end of ``quintessential inflation.'' As such, these models can affect, and therefore be constrained by, primordial nucleosynthesis and the epoch of photon decoupling. Here we analyze one popular form for the quintessence field (with and without a supergravity correction) and quantify constraints on the allowed initial conditions and parameters for the effective potential. We also deduce constraints on the epoch of matter creation at the end of quintessential inflation." @default.
- W1993497981 created "2016-06-24" @default.
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- W1993497981 date "2002-02-08" @default.
- W1993497981 modified "2023-09-30" @default.
- W1993497981 title "Constraints on cosmic quintessence and quintessential inflation" @default.
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- W1993497981 doi "https://doi.org/10.1103/physrevd.65.063502" @default.
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