Holographic kinetic k-essence model

Cruz, Norman; González-Dı́az, Pedro F.; Rozas-Fernández, Alberto; Sánchez, Guillermo Castillo

doi:10.1016/j.physletb.2009.07.028

Cited by 24 publications

(16 citation statements)

References 70 publications

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“…HDE is usually considered to be a very different model of DE compared to scalar field models. However, it is interesting to note that with non-trivial potentials, one can use scalar field to reconstruct HDE [365,366,367,368,369,370,371,372,373,374,375,376,377].…”

Section: Reconstructing Scalar Field Dementioning

confidence: 99%

Holographic dark energy

2017

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We review the paradigm of holographic dark energy (HDE), which arises from a theoretical attempt of applying the holographic principle (HP) to the dark energy (DE) problem. Making use of the HP and the dimensional analysis, we derive the general formula of the energy density of HDE. Then, we describe the properties of HDE model, in which the future event horizon is chosen as the characteristic length scale. We also introduce the theoretical explorations and the observational constraints for this model. Next, in the framework of HDE, we discuss various topics, such as spatial curvature, neutrino, instability of perturbation, time-varying gravitational constant, inflation, black hole and big rip singularity. In addition, from both the theoretical and the observational aspects, we introduce the interacting holographic dark energy scenario, where the interaction between dark matter and HDE is taken into account. Furthermore, we discuss the HDE scenario in various modified gravity (MG) theories, such as Brans-Dicke theory, braneworld theory, scalar-tensor theory, Horava-Lifshitz theory, and so on. Besides, we introduce the attempts of reconstructing various scalar-field DE and MG models from HDE. Moreover, we introduce other DE models inspired by the HP, in which different characteristic length scales are chosen. Finally, we make comparisons among various HP-inspired DE models, by using cosmological observations and diagnostic tools.

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Section: Reconstructing Scalar Field Dementioning

confidence: 99%

Holographic dark energy

2017

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“…Some work has been done in this direction. Holographic quintessence and holographic quintom models have been discussed in [29] and [30], respectively, the holographic tachyon model in [31] and the holographic kinetic k-essence model in [32]. Other relevant works can be found in [33].…”

Section: Introductionmentioning

confidence: 99%

Holographic dilatonic dark energy model

Rozas-Fernández

2011

Eur. Phys. J. C

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Abstract. We present a dilatonic description of the holographic dark energy by connecting the holographic dark energy density with the dilaton scalar field energy density in a flat Friedmann-Robertson-Walker universe. We show that this model can describe the observed accelerated expansion of our universe with the choice c ≥ 1 and reconstruct the kinetic term as well as the dynamics of the dilaton scalar field. PACS

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“…• Schmidt et al [94] propose that Λ with a magnitude of Λ(Gh/c 3 ) = 10 −23 has positive cosmological constants. Such findings on the magnitude and the redshift of type Ia supernova indicates that through the cosmological Λ − term our universe can be accelerating with induced cosmological density.…”

Section: πmentioning

confidence: 99%

Compatibility between the scalar field models of tachyon, k-essence and quintessence in f(R, T) gravity

Bhardwaj

Pradhan²,

Dixit³

2021

New Astronomy

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We investigate the behavior of the scalar field in f (R, T) gravity (Harko et al., Phys. Rev. D 84, 024020, 2011) inside the structure of a flat FRW cosmological model, where R and T have their usual meaning. The deterministic solution of FEs has been settled by considering the scale factor S(t) = t m e kt , where m and k are positive constant. Here we utilize three ongoing imperatives (H0 = 73.8 and q0 = −0.73) from SNe Ia Union observation (

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Holographic kinetic k-essence model

Cited by 24 publications

References 70 publications

Holographic dark energy

Holographic dark energy

Holographic dilatonic dark energy model

Compatibility between the scalar field models of tachyon, k-essence and quintessence in f(R, T) gravity

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