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Inflation in the R\'{e}nyi cosmology

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arxiv 1902.10202 v1 pith:MFGUTI6S submitted 2019-02-06 gr-qc hep-th

classification gr-qchep-th
keywords acceleratedcosmologycurrentcorrectionscosmosfluidhypotheticalinflation
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The description of the accelerated phases for the current and primordial cosmos has been obtained in the framework of R\'{e}nyi cosmology. The results show that corrections to the Friedmann equations, originated from differences between R\'{e}nyi and Bekenstein entropies, can describe both the current accelerated and inflationary eras. The effects of these corrections can be appointed to a hypothetical fluid which is classically unstable. Although inflation can be obtained in R\'{e}nyi cosmology as the vacuum solution, the values found for the parameters of the hypothetical fluid which supports the current accelerated and primary inflationary cosmos differ from each other.

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Cited by 1 Pith paper

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  1. Constraints on R\'{e}nyi Entropy through Primordial Big-Bang Nucleosynthesis and Baryogenesis

    physics.gen-ph 2025-07 reject novelty 5.0 of 10

    Rényi entropy cosmology constrained by BBN: helium and deuterium allow overlapping λ ranges near 10^-85, lithium requires disjoint values, so the constant-λ model cannot solve the lithium problem.

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