2020/03/31 by Vipin Chandra Dubey, Umesh Kumar Sharma
Physics and Astronomy · #Astrophysics #Cold dark matter #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark fluid #Dark matter #Deceleration parameter #Energy (signal processing) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Holography #Physics #Quantum mechanics #Redshift #Statistical Mechanics and Entropy #Theoretical physics #gr-qc
paper · pdf · doi:10.1016/j.newast.2021.101586
10 pages, 10 figures
openalex created_date 2020/03/13 · arxiv created 2020/08/09 · openalex publication_date 2021/02/16 · arxiv updated 2021/03/03 · openalex updated_date 2026/08/05
In this work, we use the statefinder parameter diagnostic to the Holographic principal inspired dark energy models, taking into consideration, the Tsallis Holographic dark energy (THDE) model, the standard Holographic dark energy (HDE) model, and the R\acuteenyi holographic dark energy (RHDE) model. The evolutionary behaviour of first statefinder r(z), second statefinder parameter s(z), the statefinder parameter pairs (r, s) and (r, q) as well as the deceleration parameter q(z) are plotted for comparison for the various parameter values of the respective dark energy models. In the low redshift region, it is observed from these plots that the Tsallis holographic dark energy (THDE) model and R\acuteenyi holographic dark energy (RHDE) model approach to the ΛCDM model. While for the HDE model, the evolutionary behaviour can be differentiated from the ΛCDM model in the low-redshift region. For all three dark energy models, a direct comparison in q(z), r(z), s(z), (r, s) and (r, q) plane have also been done, in which the discrimination between these three models wif the ΛCDM model) may be easily seen.