F(G) gravity models based on the ordinary and entropy-corrected holographic dark energy models

2013 ◽  
Vol 91 (2) ◽  
pp. 134-139
Author(s):  
M.R. Setare ◽  
B. Malakolkalami ◽  
N. Mohammadipour
Keyword(s):  
Dark Energy ◽  
Modified Gravity ◽  
Holographic Dark Energy ◽  
Gravity Models ◽  
Energy Models ◽  
Friedmann Robertson Walker ◽  
Modified Gravity Models

The ordinary and entropy-corrected versions of the holographic dark energy models in the spatially flat Friedmann–Robertson–Walker universe are considered. Then the F(G) modified gravity models as a candidates of dark energy are reconstructed according to the ordinary and entropy-corrected versions of the holographic dark energy models. The EoS parameters corresponding to the F(G) gravity models are obtained. The validity phantom or quintessence models in this framework of the modified gravity are investigated.

Reconstructions of f(P) gravity from (m,n) type ordinary and entropy-corrected holographic and Pilgrim dark energy models

2021 ◽  
Author(s):  
Rahul Ghosh ◽  
Ujjal Debnath ◽  
Shuvendu Chakraborty
Keyword(s):  
Dark Energy ◽  
Power Law ◽  
Holographic Dark Energy ◽  
Gravity Models ◽  
Pilgrim Dark Energy ◽  
Energy Models ◽  
Ordinary Power ◽  
Age Of The Universe ◽  
The Universe ◽  
Modified Gravity Models

Modified gravity models are popular among cosmologists, as they can describe the cosmological evolution quite efficiently. Reconstruction of newly introduced [Formula: see text] gravity, with the help of ordinary, power-law entropy corrected and logarithmic entropy-corrected versions of Holographic dark energy (HDE) and Pilgrim dark energy (PDE) models have been studied in this work. For such reconstruction, we have considered the power-law scale factor [Formula: see text]. Further, the classical stabilities (the squared speed of sound method) of such reconstructions and their implications on the nature of the equation of state (EoS) parameters and deceleration parameter with respect to red-shift have also been examined. Finally, we have computed the age of the universe for reconstructed models.

scholarly journals Optimizing future imaging survey of galaxies to confront dark energy and modified gravity models

2007 ◽  
Vol 76 (2) ◽  
Author(s):  
Kazuhiro Yamamoto ◽  
David Parkinson ◽  
Takashi Hamana ◽  
Robert C. Nichol ◽  
Yasushi Suto
Keyword(s):  
Dark Energy ◽  
Modified Gravity ◽  
Gravity Models ◽  
Modified Gravity Models

scholarly journals de Sitter limit analysis for dark energy and modified gravity models

2017 ◽  
Vol 96 (2) ◽  
Author(s):  
Antonio De Felice ◽  
Noemi Frusciante ◽  
Georgios Papadomanolakis
Keyword(s):  
Dark Energy ◽  
Limit Analysis ◽  
Modified Gravity ◽  
Gravity Models ◽  
De Sitter ◽  
Modified Gravity Models

Thermodynamics of specific modified gravity with generalized interaction term

2018 ◽  
Vol 15 (03) ◽  
pp. 1850033
Author(s):  
Abdul Jawad ◽  
Shamaila Rani ◽  
Tanzeela Nawaz
Keyword(s):  
Dark Energy ◽  
Modified Gravity ◽  
Holographic Dark Energy ◽  
Second Law Of Thermodynamics ◽  
Second Law ◽  
Generalized Second Law ◽  
Energy Models ◽  
Interaction Term ◽  
Hubble Horizon ◽  
Chern Simons

We investigate the generalized second law of thermodynamics by assuming the interaction of dark energy and dark matter in Chern–Simons modified gravity. We consider a family of holographic dark energy models by assuming its various cutoffs such as Hubble horizon, event horizon, their combination, Ricci scalar and its generalized form. The general criteria of generalized second law of thermodynamics in terms of coincidence parameter is being developed. This criterion is being applied for the above-mentioned holographic dark energy models to check the validity of the generalized second law of thermodynamics and the constraints where it is respected are referred.

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