2021/01/11 by Arindam Saha, S. Ghose, Souvik Ghose +3 · 15 citations
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Dark energy #De Sitter universe #Deceleration parameter #Galaxies: Formation, Evolution, Phenomena #Metric expansion of space #Physics #Theoretical physics #Universe #astro-ph.CO #gr-qc
paper · pdf · doi:10.1016/j.aop.2021.168403
published in Annals of Physics 426, 168403 (Elsevier BV) · 17 pages, 11 figures, Accepted for publication in Annals of Physics
arxiv created 2021/01/11 · openalex publication_date 2021/01/20 · arxiv updated 2021/01/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Rényi holographic dark energy (RHDE) correspondence is discussed in higher dimensional cosmology, namely Kaluza-Klein (KK) cosmology. Both interacting and non-interacting cosmological scenario are considered here. It is found that the non-interacting model naturally leads to the late accelerated universe, unlike the standard Holographic Dark Energy models in 4D, which requires interaction to accommodate the late-time acceleration of the universe. The interacting model produces an accelerating universe at late time albeit failing to attain the estimated present value of the deceleration parameter. The evolution of different cosmologically relevant parameters have been estimated. We consider here two diagnostic tests namely, state-finder and Om diagnostics to study the non-interacting model which is more favoured in the light of recent cosmological observations. Classical stability of the cosmological models are also discussed