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- W2045790821 abstract "We derive constraints on a simple quintessential inflation model, based on a spontaneously broken ${ensuremath{Phi}}^{4}$ 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." @default.
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- W2045790821 date "2007-02-16" @default.
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- W2045790821 title "Cosmic microwave background and large-scale structure constraints on a simple quintessential inflation model" @default.
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- W2045790821 doi "https://doi.org/10.1103/physrevd.75.043513" @default.
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