A modified holographic Ricci dark energy model in f (R, T) theory of gravity

Pawar, D. D.; Mapari, R. V.; Agrawal, Prateek

doi:10.1007/s12036-019-9582-5

Cited by 22 publications

(6 citation statements)

References 57 publications

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“…9, 12, 13 and 14. These conditions have been rigorously examined and affirmed in diverse scenarios, such as the investigation of dark energy, dark matter, and cosmic expansion, with results consistent with prior studies [78][79][80][81][82].…”

Section: Concluding Remarksupporting

confidence: 69%

Anisotropic behavior of universe in $$f(R, L_m)$$ gravity with varying deceleration parameter

Pawde,

Mapari,

Patil

et al. 2024

Eur. Phys. J. C

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In this research study, we investigate the anisotropic behavior of the Universe using the framework of $$f(R, L_m)$$ f ( R , L m ) gravity. This modified gravity theory, represented by $$f(R, L_m)=\frac{R}{2}+L^\alpha _m+\beta $$ f ( R , L m ) = R 2 + L m α + β , incorporates both the Ricci scalar (R) and matter Lagrangian density ($$L_m$$ L m ). Our exploration centers around understanding the Universe’s dynamics through the variable deceleration parameter. Additionally, we employ energy conditions, the jerk parameter, equation-of-state (EoS) parameter and statefinder parameters as analytical tools to gain insights into the evolution of the Universe within this modified gravity scenario. Our findings are then compared to recent observational data and are found to be in agreement with the $$\Lambda $$ Λ CDM model. This research contributes valuable insights into the anisotropic nature of the Universe in the context of $$f(R, L_m)$$ f ( R , L m ) gravity and highlights its deviations from the $$\Lambda $$ Λ CDM model, providing a deeper understanding of the fundamental dynamics of our cosmic evolution.

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Section: Concluding Remarksupporting

confidence: 69%

Anisotropic behavior of universe in $$f(R, L_m)$$ gravity with varying deceleration parameter

Pawde,

Mapari,

Patil

et al. 2024

Eur. Phys. J. C

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“…We have noted that the average scale factor and spatial volume (V) remain bounded around t = 0, progressively expanding as time (t) advances, ultimately approaching an infinitely large value as t → ∞, as depicted in Figure 1. This signifies that the expansion of the Universe initiates with a finite volume, progressively extending as time unfolds and results matched with [55,56,57].…”

Section: Discussion and Concluding Remarksmentioning

confidence: 52%

FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity

Patil,

Pawde,

Mapari

et al. 2023

East Eur. J. Phys.

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In this paper, we aim to describe the cosmic late-time acceleration of the Universe in f(R,Lm) gravity framework proposed by Harko (2010) with the help of an equation of state for strange quark matter. To achieve this, we adopt a specific form of f(R,Lm) gravity as f(R,Lm) =R/2}+ Lnm, where n is arbitrary constants. Here we utilize a hybrid scale factor to resolve the modified field equations in the context of f(R,Lm) gravity for an isotropic and homogeneous Friedmann–Lemaître–Robertson–Walker (FLRW) metric in presence of strange quark matter (SQM). Also, we analyze the dynamics of energy density, pressure and the state finder parameters and explained the distinctions between our model and the current dark energy models in the presence of SQM. We observed a transition from an accelerating to a decelerating phase in the Universe, followed by a return to an accelerating phase at late times. Also, we analyzed the state finder diagnostic as well equation of state parameter and found that the model exhibited quintessence-like behavior. The conclusion drawn from our investigation was that the proposed f(R, Lm) cosmological model aligns well with recent observational studies and effectively describes the cosmic acceleration observed during late times.

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“…Naidu et al [58] have acquired "Dynamics of axially symmetric anisotropic MHRDE model in Brans-Dicke theory of gravitation". Recently, Pawar et al [59] examined "A Modified Holographic Ricci Dark Energy Model in ( ) theory of gravity". Basumatary et al [60] have reviewed Bianchi type VI 0 dark energy model with a particular form of scale factor in Sen-Dunn's theory of gravitation.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic Bianchi Type VI0 Cosmological Models in a Modified f(R,T) Gravity

M. R. Ugale,

S. B. Deshmukh

2024

J. Sci. Res.

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We investigate the spatially homogeneous and anisotropic Bianchi type VI0 cosmological models with modified Holographic Ricci Dark Energy subjected to f(R,T) gravity. We have obtained the solution of the field equations with the help of the power law relation among the scale factors. Dynamical parameters are calculated by using the connection between pressure and energy density. The kinematical implications of the models are also examined. Graphical presentation of different cosmological parameters is shown for distinct values of the parameter of the model

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A modified holographic Ricci dark energy model in f (R, T) theory of gravity

Cited by 22 publications

References 57 publications

Anisotropic behavior of universe in $$f(R, L_m)$$ gravity with varying deceleration parameter

Anisotropic behavior of universe in $$f(R, L_m)$$ gravity with varying deceleration parameter

FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity

Anisotropic Bianchi Type VI<sub>0</sub> Cosmological Models in a Modified <i>f</i>(<i>R,T</i>) Gravity

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