Observational constraints on Tsallis holographic dark energy with Ricci horizon cutoff

Mangoudehi, Zahra Feizi

doi:10.1007/s10509-022-04154-2

Cited by 5 publications

(1 citation statement)

References 64 publications

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“…In recent years, the THDE model has drawn a lot of attention [100][101][102][103][104][105]. In addition to many theoretical explorations and observational constraints, this model has also been studied in various modified gravity theories, such as Brans Dicke theory [106] and Brane cosmology [107].…”

Section: Hde Models With Modified Black Hole Entropymentioning

confidence: 99%

Theoretical aspects of holographic dark energy

Wang,

2023

Commun. Theor. Phys.

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We review the theoretical aspects of holographic dark energy (HDE) in this paper. Making use of the holographic principle (HP) and the dimensional analysis, we derive the core formula of the original HDE (OHDE) model, in which the future event horizon is chosen as the characteristic length scale. Then, we describe the basic properties and the corresponding theoretical studies of the OHDE model, as well as the effect of adding dark sector interaction in the OHDE model. Moreover, we introduce all four types of HDE models that originate from HP, including (1) HDE models with the other characteristic length scale; (2) HDE models with extended Hubble scale; (3) HDE models with dark sector interaction; (4) HDE models with modified black hole entropy. Finally, we introduce the well-known Hubble tension problem, as well as the attempts to alleviate this problem under the framework of HDE. From the perspective of theory, the core formula of HDE is obtained by combining the HP and the dimensional analysis, instead of adding a DE term into the Lagrangian. Therefore, HDE remarkably differs from any other theory of DE. From the perspective of observation, HDE can fit various astronomical data well and has the potential to alleviate the Hubble tension problem. These features make HDE a very competitive dark energy scenario.

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Section: Hde Models With Modified Black Hole Entropymentioning

confidence: 99%

Theoretical aspects of holographic dark energy

Wang,

2023

Commun. Theor. Phys.

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Gravitational wave probes of Barrow cosmology with LISA standard sirens

Asghari,

Allahyari,

Mota

2024

J. Cosmol. Astropart. Phys.

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We study the Barrow cosmological model, which proposes that quantum gravity effects create a complex, fractal structure for the universe's apparent horizon. We leverage the thermodynamics-gravity conjecture. By applying the Clausius relation to the apparent horizon of the Friedmann-Lemaître-Robertson-Walker universe within this framework, we derive modified field equations where the Barrow entropy is linked to the horizon. We assess the Barrow cosmology against current observations — cosmic microwave background, supernovae, and baryon acoustic oscillations data — and include projections for future Laser Interferometer Space Antenna (LISA) standard sirens (SS). Our numerical results suggest a modest improvement in the Hubble tension for Barrow cosmology with phantom dark energy behavior, compared to the standard cosmological model. Furthermore, incorporating simulated LISA SS data alongside existing observational constraints tightens the limitations on cosmological parameters, particularly the deformation exponent.

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