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Barrow holographic dark energy [PDF]
Physical Review D, 2020 We formulate Barrow holographic dark energy, by applying the usual holographic principle at a cosmological framework, but using the Barrow entropy instead of the standard Bekenstein-Hawking one.
E. Saridakis
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Holographic Dark Energy in Modified Barrow Cosmology [PDF]
Entropy, 2022 Thermodynamics–gravity conjecture implies that there is a deep connection between the gravitational field equations and the first law of thermodynamics. Therefore, any modification to the entropy expression directly modifies the field equations.
A. Sheykhi, Maral Sahebi Hamedan
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Observational constraints on Barrow holographic dark energy [PDF]
The European Physical Journal C, 2020 We use observational data from Supernovae (SNIa) Pantheon sample, as well as from direct measurements of the Hubble parameter from the cosmic chronometers (CC) sample, in order to extract constraints on the scenario of Barrow holographic dark energy. The
Fotios Anagnostopoulos +2 more
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Barrow Entropy Cosmology: an observational approach with a hint of stability analysis [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 In this work, we use an observational approach and dynamical system analysis to study the cosmological model recently proposed by Saridakis (2020), which is based on the modification of the entropy-area black hole relation proposed by Barrow (2020).
G. Leon +5 more
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Constraints on Barrow Entropy from M87 and S2 Star Observations* [PDF]
Universe, 2021 We use data from M87* central black hole shadow, as well as from the S2 star observations, in order to extract constraints on Barrow entropy. The latter is a modified entropy arising from quantum-gravitational effects on the black hole horizon ...
K. Jusufi +3 more
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Modified cosmology through spacetime thermodynamics and Barrow horizon entropy [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We present modified cosmological scenarios that arise from the application of the “gravity-thermodynamics” conjecture, using the Barrow entropy instead of the usual Bekenstein-Hawking one.
E. Saridakis
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Barrow entropy corrections to Friedmann equations [PDF]
, 2021 Inspired by the Covid-19 virus structure, Barrow argued that quantum-gravitational effects may introduce intricate, fractal features on the black hole horizon [Phys. Lett. B 808 (2020) 135643].
A. Sheykhi
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Dynamical analysis and statefinder of Barrow holographic dark energy [PDF]
The European Physical Journal C, 2021 Based on the holographic principle and the Barrow entropy, Barrow holographic dark energy had been proposed. In order to analyze the stability and the evolution of Barrow holographic dark energy, we, in this paper, apply the dynamical analysis and ...
Qihong Huang +4 more
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The generalized second law of thermodynamics with Barrow entropy [PDF]
The European Physical Journal C, 2020 We investigate the validity of the generalized second law of thermodynamics, applying Barrow entropy for the horizon entropy. The former arises from the fact that the black-hole surface may be deformed due to quantum-gravitational effects, quantified by ...
E. Saridakis, S. Basilakos
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Barrow HDE model for statefinder diagnostic in FLRW universe [PDF]
International Journal of Modern Physics A, 2021 We have analyzed the Barrow holographic dark energy (BHDE) in the framework of flat FLRW universe by considering the various estimations of Barrow exponent △. Here, we define BHDE, by applying the usual holographic principle at a cosmological system, for
A. Pradhan, A. Dixit, V. K. Bhardwaj
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