New initial condition of the new agegraphic dark energy model

In this paper, we first obtain the energy density by the approach of the new agegraphic dark energy model, and then the [Formula: see text] gravity model is studied as an alternative to the dark energy in a viscous fluid by flat-FRW background, in which [Formula: see text] and [Formula: see text] are torsion scalar and boundary term. The Friedmann equations will be obtained in the framework of modified teleparallel gravity by tetrad components. We consider that the universe dominates with components such as matter and dark energy by an interacting model. The Hubble parameter is parameterized by the power-law for the scale factor, and then we fit the corresponding Hubble parameter with observational data constraints. The variation of the equation of state (EoS) for dark energy is plotted as a function of the redshift parameter, and the accelerated expansion of the universe is explored. In what follows, the stability of the model is also studied on the base of the sound speed parameter. Finally, the generalized second law of thermodynamics is investigated by entropies of inside and on the boundary of the apparent horizon in thermodynamics equilibrium.

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COSMOLOGICAL EVOLUTION OF NEW-AGEGRAPHIC DARK ENERGY MODEL

Modern Physics Letters A ◽

10.1142/s0217732308027734 ◽

2008 ◽

Vol 23 (17n20) ◽

pp. 1366-1371 ◽

Cited By ~ 1

Author(s):

H. W. LEE ◽

K. Y. KIM ◽

Y. S. MYUNG

Keyword(s):

Dark Energy ◽

Differential Equations ◽

Dark Energy Model ◽

Critical Value ◽

Energy Model ◽

Cosmological Evolution ◽

Agegraphic Dark Energy ◽

New Agegraphic Dark Energy

We investigate the cosmological evolution of the new-agegraphic dark energy model which was recently proposed to explain the dark energy-dominated universe. For this purpose, we derived differential equations for density parameters and solved them numerically. We found that there exist a critical value for undetermined parameter of new-agegraphic density to obtain a stable and accessible evolution in the far past. Furthermore, this parameter seems to be fixed as the critical value for consistence.

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Reconstruction of f(G) gravity with the new agegraphic dark-energy model

The European Physical Journal Plus ◽

10.1140/epjp/i2013-13088-x ◽

2013 ◽

Vol 128 (8) ◽

Cited By ~ 48

Author(s):

Abdul Jawad ◽

Surajit Chattopadhyay ◽

Antonio Pasqua

Keyword(s):

Dark Energy ◽

Dark Energy Model ◽

Energy Model ◽

Agegraphic Dark Energy ◽

New Agegraphic Dark Energy

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Reconstruction of the New Agegraphic Polytropic Gas Dark Energy Model in the Flat Friedmann Robertson Walker (FRW) Universe

Journal of Scientific Research ◽

10.3329/jsr.v13i3.51323 ◽

2021 ◽

Vol 13 (3) ◽

pp. 779-784

Author(s):

P. Das ◽

K. P. Singh

Keyword(s):

Dark Energy ◽

Dark Energy Model ◽

Scalar Fields ◽

Energy Model ◽

Accelerated Expansion ◽

Frw Universe ◽

Agegraphic Dark Energy ◽

New Agegraphic Dark Energy ◽

Polytropic Gas ◽

Friedmann Robertson Walker

In this paper, we study the Polytropic Gas Dark Energy model and New Agegraphic Dark Energy model in the flat Friedmann Robertson Walker (FRW) Universe and establish a correspondence between them for the scalar fields. This correspondence allows reconstructing the potential of the Polytropic Gas scalar fields and dynamics of the scalar fields according to the evolutions of the New Agegraphic Dark Energy, which describes the accelerated expansion of the Universe.

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