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Observational constraints on Tsallis holographic dark energy with Ricci horizon cutoff
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Observational constraints on Tsallis holographic dark energy with Ricci horizon cutoff
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Journal Article
Observational constraints on Tsallis holographic dark energy with Ricci horizon cutoff
2022
Overview
In this research, we are interested in constraining the nonlinear interacting and noninteracting Tsallis holographic dark energy (THDE) with Ricci horizon cutoff by employing three observational datasets. To this aim, the THDE with Ricci horizon considering the noninteraction and nonlinear interaction terms will be fitted by the SNe Ia, SNe Ia+H(z), and SNe Ia+H(z)+GRB samples to investigate the Hubble (H(z)), dark-energy equation of state (ωDE), effective equation of state (ωeff), and deceleration (q) parameters. Investigating the H(z) parameter illustrates that our models are in good consistency with respect to observations. Also, it can reveal the turning point for both noninteracting and nonlinear interacting THDE with Ricci cutoff in the late-time era. Next, the analysis of the ωDE for our models displays that the dark energy can experience the phantom state at the current time. However, this lies in the quintessence regime in the early era and approaches the cosmological constant in the late-time epoch. Similar results will be given for the ωeff parameter with the difference that the ωeff will experience the quintessence region at the current redshift. In addition to the mentioned parameters, the study of the q parameter indicates that the models satisfy an acceptable transition phase from the matter- to the dark energy-dominated era. After that, the classical stability (vs2) will be analyzed for our models. The vs2 shows that the noninteracting and nonlinear interacting THDE with Ricci cutoff will be stable in the past era but unstable in the present and progressive epochs. Then, we will employ the Jerk (J) and OM parameters to distinguish between our models and the ΛCDM model. Finally, we will calculate the age of the Universe for the THDE and nonlinear interacting THDE with Ricci as the IR cutoff.
Publisher
Springer Nature B.V
