Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Gashti, S. Noori"'
In this paper, we study a particular type of inflation by using non-local Friedman equations that are somehow derived from the zero levels of string field theory and express a tachyonic action. Then, we challenge it by further refining de Sitter (dS)
Externí odkaz:
http://arxiv.org/abs/2303.04551
Publikováno v:
International Journal of Modern Physics D 32, 03, 2350011 (2023)
Mimetic gravity analysis has been studied as a theory in various types of general relativity extensions, such as mimetic f(R) gravity, mimetic f(R, T) gravity, mimetic f(R, G) gravity, etc., in the literature. This paper presents a set of equations a
Externí odkaz:
http://arxiv.org/abs/2212.08003
Publikováno v:
Communications in Theoretical Physics 75 025402 (2023)
In this paper, we use a Tsallis holographic dark energy model in two forms, interacting and non-interacting cases, to acquire some parameters as the equation of state for the energy density of the Tsallis model in the FRW universe concerning the comp
Externí odkaz:
http://arxiv.org/abs/2211.10401
Publikováno v:
Commun. Theor. Phys. 74 085402 (2022)
In this paper, we study a theory of gravity called mimetic $f(R, T)$ in the presence of swampland dS conjecture. For this purpose, we introduce several inflation solutions of the Hubble parameter H(N) from $f(R, T)= R+\delta T$ gravity model, in whic
Externí odkaz:
http://arxiv.org/abs/2208.12229
Autor:
Gashti, S. Noori, Sadeghi, J.
Publikováno v:
Modern Physics Letters A, 2250110 (2022)
In this paper, we study various cosmological parameters and quantities in scalar-tensor gravity from inflation and swampland conjecture. Therefore, by selecting different models such as power-law, exponential, and logarithmic in the framework of scal
Externí odkaz:
http://arxiv.org/abs/2208.08504
Publikováno v:
Physics of the Dark Universe, Volume 37, September 2022, 101090
In this paper, we study a hybrid combination of Einstein-Hilbert action with curvature scalar $R$, and a function $f(\mathcal{R})$ in Palatini gravity within the context of inflationary scenario, from the Swampland conjecture point of view. This hybr
Externí odkaz:
http://arxiv.org/abs/2207.09793
Publikováno v:
Mod. Phys. Lett. A 37, 2250018 (2022)
Wormholes are speculative structures linking disparate space-time points. Their geometry can be obtained by solving Einstein equations with tolerating the violation of null energy conditions. Recently, many researchers have studied different wormhole
Externí odkaz:
http://arxiv.org/abs/2203.04543
In this paper, by considering the complex form of the quintessence model, we study two different dynamic structures of holographic dark energy as Tsallis and Kaniadakis in the framework Brans-Dicke cosmology. In each setup, we employ non-interacting
Externí odkaz:
http://arxiv.org/abs/2203.04375
Publikováno v:
Astroparticle Physics 139, 102703 (2022)
Recently researchers have been studying various conditions as swampland criteria in cosmological implications. They have studied many inflation models with different swampland conditions. Occasionally these conjectures are modified and lead to fascin
Externí odkaz:
http://arxiv.org/abs/2202.06381
Publikováno v:
Annals of Physics 447 (2022) 169168
The universal thermodynamic relations between corrections to entropy and extremality for various black holes solutions have been studied. In this regard, we hereby consider a number of different black brane solutions in different structures for pertu
Externí odkaz:
http://arxiv.org/abs/2201.04071