A deformed uncertainty relation for the universe scale factor modifies the Friedmann equation to yield late-universe acceleration or a bounce according to the sign of a single free exponent.
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Generalized horizon entropy models satisfy BBN constraints on helium and deuterium abundances when parameters are chosen for cosmic acceleration, though lithium remains discrepant as in standard cosmology.
CET Omega predicts a doubly logarithmic correction to early-universe radiation density, constrained by Planck and BBN data to |alpha_log| <= 0.006 and consistent with zero.
citing papers explorer
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A Cosmological Uncertainty Relation and Late-Universe Acceleration
A deformed uncertainty relation for the universe scale factor modifies the Friedmann equation to yield late-universe acceleration or a bounce according to the sign of a single free exponent.
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Viability of Big Bang Nucleosynthesis in Some Generalized Horizon Entropies
Generalized horizon entropy models satisfy BBN constraints on helium and deuterium abundances when parameters are chosen for cosmic acceleration, though lithium remains discrepant as in standard cosmology.
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Doubly Logarithmic Corrections to Radiation Domination from CET {\Omega}: Theory and Planck/BBN Constraints
CET Omega predicts a doubly logarithmic correction to early-universe radiation density, constrained by Planck and BBN data to |alpha_log| <= 0.006 and consistent with zero.