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On a quadratic equation of state and a universe mildly bouncing above the Planck temperature
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A 1-parameter class of quadratic equations of state is confronted with the Hubble diagram of supernovae and Baryonic Acoustic Oscillations. The fit is found to be as good as the one using the LambdaCDM model. The corresponding universe has no initial singularity, only a mild bounce at a temperature well above the Planck temperature.
Forward citations
Cited by 2 Pith papers
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Phase-Space Analysis of Quadratic Dark Energy: Stable Attractors and Their Observational Signatures
Phase-space analysis of a quadratic dark energy model finds that negative η produces stable phantom attractors while the effective equation of state approaches -1 asymptotically from both sides without crossing.
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Phase-Space Analysis of Quadratic Dark Energy: Stable Attractors and Their Observational Signatures
Phase-space analysis of a quadratic dark energy model identifies stable attractors that approach the phantom divide asymptotically from both sides without crossing it.
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