Nettet27. nov. 2008 · A cosmological model of an holographic dark energy interacting with dark matter throughout a decaying term of the form Q = 3 (λ 1 ρ DE + λ 2 ρ m) H in a closed … Nettet24. feb. 2014 · Analyses of structure on galactic and subgalactic scales have suggested that dark matter may be composed of objects other than weakly interacting subatomic particles [ 18 ]. To avoid the formation of naked singularities [ 17 ], dark matter with a negative energy should be coupled to torsion which prevents singularities in fermionic …
Origin of the Universe, Dark Energy, and Dark Matter
NettetHowever, a closed Universe ... ergy models that consider dark energy interacting with dark matter [25–27]. Some recent works showed that the generalized Chaplygin gas model could greatly reduce the tension between the CMB and local determinations of the Hubble constant [28]. NettetIn light of these two recent appealing scenarios, we consider here an interacting dark matter-dark energy model with a non-zero spatial curvature component and a freely varying dark energy equation of state in both the quintessential and phantom regimes. download org 2023
Explaining the Universe’s accelerated expansion without dark …
Nettet14. feb. 1982 · A closed universe with radiation and matter begins expanding from a physical singularity, then recollapses and ends by contracting to another physical singularity. The Penrose diagram for a closed FRW universe filled with matter and radiation is plotted in the right panel of Fig. 9. NettetAn Interacting Two-Fluid Scenario for Dark Energy in FRW Universe Hassan Amirhashchi1 , Anirudh Pradhan2 and Bijan Saha3 1 Department of Physics, Islamic Azad University, Mahshahr Branch, arXiv:1011.3940v2 [gr-qc] 14 Jan 2011 Mahshahr, Iran E-mail: [email protected]; [email protected] 2 Department of … Nettet17. feb. 2014 · Dark energy with negative pressure and positive energy density is believed to be responsible for the accelerated expansion of the universe. Quite a few theoretical models of dark energy are based on tachyonic fields interacting with itself and normal (bradyonic) matter. Here, we propose an experimental model of tachyonic dark … download orf tvthek