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of 70
pro vyhledávání: '"Amani, Alireza"'
In this paper, we model the bounce phase, stability and the reconstruction of the universe by non-minimal kinetic coupling. In the process, we obtained importance information about the energy density and the matter pressure of the universe in relatio
Externí odkaz:
http://arxiv.org/abs/2308.05130
Autor:
Mahichi, E., Amani, Alireza
Publikováno v:
Physics of the Dark Universe 39 (2023) 101167
In this paper, we study the viscous $f(T, B)$ gravity model as a source of dark energy, and the Extended Bose-Einstein Condensate (EBEC) as a source of dark matter, in a flat-FRW metric. In the presence of bulk viscosity, we obtain Friedmann equation
Externí odkaz:
http://arxiv.org/abs/2301.04950
In this paper, we consider an open system from the thermodynamic perspective for an adiabatic FRW universe model in which particle creation occurs within the system. In that case, the modified continuity equation is obtained and then we correspond it
Externí odkaz:
http://arxiv.org/abs/2208.07710
In this paper, we study the $F(R, G)$ gravity model with an interacting model by flat-FRW metric in a viscous fluid. We consider that the universe dominates with components of dark matter and dark energy. This means that the dark matter component der
Externí odkaz:
http://arxiv.org/abs/2107.11827
In this paper, the viscous cosmological dynamics are studied in the presence of dark matter Bose-Einstein Condensation (BEC) by curved-FRW background. For this purpose, we use the BEC regime rather than the normal dark matter (the cold dark matter or
Externí odkaz:
http://arxiv.org/abs/2107.04780
Publikováno v:
Physica B 614 (2021) 413045
In this paper, we study the massive Dirac equation with the presence of the Morse potential in polar coordinate. The Dirac Hamiltonian is written as two second-order differential equations in terms of two spinor wavefunctions. Since the motion of ele
Externí odkaz:
http://arxiv.org/abs/2104.06725
Publikováno v:
Canadian Journal of Physics, 98, 12, 2020
In this paper, we study the $f(T,\mathcal{T})$ gravity model in the presence of the bulk viscosity by the flat-FRW metric. The field equation is obtained by teleparallel gravity with tetrad field. The universe components are considered as matter and
Externí odkaz:
http://arxiv.org/abs/2012.09523
Autor:
Pourbagher, A., Amani, Alireza
In this paper, we first obtain the energy density by the approach of the new agegraphic dark energy model, and then the $f(T,B)$ gravity model is studied as an alternative to the dark energy in a viscous fluid by flat-FRW background, in which $T$ and
Externí odkaz:
http://arxiv.org/abs/2006.09172
Akademický článek
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Autor:
Pourbagher, A., Amani, Alireza
Publikováno v:
Astrophys Space Sci (2019) 364: 140
In this paper, we study the model of $f(T, B)$ gravity with viscous fluid in flat-FRW metric, in which $T$ and $B$ are torsion scalar and boundary term, respectively. We obtain the Friedmann equations in the framework of modified teleparallel gravity
Externí odkaz:
http://arxiv.org/abs/1908.11595