Precision cosmology as a test for statistics

Abstract

We compute the shift in the epoch of matter-radiation equality due to the possible existence of a different statistical (non-extensive) background. The shift is mainly caused by a different neutrino-photon temperature ratio. We then consider the prospects to use future large galaxy surveys and cosmic microwave background measurements to constrain the degree of non-extensivity of the universe.

to appear in Physica A

References in corpus (4)

• Measuring cosmological parameters with galaxy surveys
• Early Universe Test of Nonextensive Statistics
• The radiation-matter transition in Jordan-Brans-Dicke theory
• Cosmology in a non-standard statistical background

Cited by in corpus (4)

• Generalized thermodynamics of q-deformed bosons and fermions
• Statistical mechanics and the description of the early universe I.: Foundations for a slightly non-extensive cosmology
• Quantal distribution functions in non-extensive statistics and an early universe test revisited
• Non-extensivity Effects and the Highest Energy Cosmic Ray Affair