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Cosmic microwave background and large-scale structure constraints on a simple quintessential inflation model

Rogerio Rosenfeld·Joshua A. Frieman
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Abstract

We derive constraints on a simple quintessential inflation model, based on a spontaneously broken Phi^4 theory, imposed by the Wilkinson Microwave Anisotropy Probe three-year data (WMAP3) and by galaxy clustering results from the Sloan Digital Sky Survey(SDSS). We find that the scale of symmetry breaking must be larger than about 3 Planck masses in order for inflation to generate acceptable values of the scalar spectral index and of the tensor-to-scalar ratio. We also show that the resulting quintessence equation-of-state can evolve rapidly at recent times and hence can potentially be distinguished from a simple cosmological constant in this parameter regime.

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Rogerio Rosenfeld, Joshua A. Frieman. 2006-11-07. Cosmic microwave background and large-scale structure constraints on a simple quintessential inflation model. https://doi.org/10.1103/physrevd.75.043513

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