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We present a $f(G,T)$ gravity-based reconstruction of Barrow Holographic Dark Energy (BHDE). This approach extends the conventional HDE model by replacing the Bekenstein-Hawking entropy with Barrow entropy, which encapsulates quantum…

广义相对论与量子宇宙学 · 物理学 2025-05-29 Giuseppe Gaetano Luciano

Recently, Barrow holographic dark energy (BHDE), based on Barrow entropy, has been proposed to describe the late acceleration of the universe. Contrary to the earlier analysis of this model in the literature, we consider the BHDE with the…

广义相对论与量子宇宙学 · 物理学 2023-02-06 Nandhida Krishnan. P , Titus K Mathew

Understanding the accelerating expansion of the universe remains one of the foremost challenges in modern cosmology. This study investigates Barrow Holographic Dark Energy (BHDE), a model inspired by quantum gravitational corrections,…

广义相对论与量子宇宙学 · 物理学 2024-12-02 N. Myrzakulov , S. H. Shekh , Anirudh Pradhan

We study the cosmological evolution of a nonflat Friedmann-Robertson-Walker Universe filled by pressureless dark matter and Barrow Holographic Dark Energy (BHDE). The latter is a dark energy model based on the holographic principle with…

广义相对论与量子宇宙学 · 物理学 2025-03-25 Giuseppe Gaetano Luciano

In this work, we propose a new model that combines holographic dark energy with modified gravity $f(Q,T)$ to explore a possible explanation for the accelerated expansion of the universe. Since there are several tensions of cosmological…

宇宙学与河外天体物理 · 物理学 2025-07-08 Xuwei Zhang , Xiaofeng Yang , Yunliang Ren , Shuangnan Chen , Yangjun Shi , Cheng Cheng , Xiaolong He

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. The former is a modification of the black hole…

广义相对论与量子宇宙学 · 物理学 2020-07-22 Emmanuel N. Saridakis

Cosmological features of Barrow Holographic Dark Energy (BHDE), a recent generalization of original Holographic dark energy with a richer structure, are studied in the context of DGP brane, RS II brane-world, and the cyclic universe. It is…

广义相对论与量子宇宙学 · 物理学 2024-01-23 Anirban Chanda , Arpan Krishna Mitra , Souvik Ghose , Sagar Dey , Bikash Chandra Paul

In this work, we propose a new dark energy model by applying the Barrow entropy and the holographic principle, with a time scale as IR cut off. Analysing the conformal time as well as universe's age as infrared cut-offs, we explore the…

广义相对论与量子宇宙学 · 物理学 2020-12-29 Umesh Kumar Sharma , Gunjan Varshney , Vipin Chandra Dubey

We present a comprehensive investigation exploring the theoretical framework of Einstein-Aether gravity theory when combined with two modified cosmological paradigms: the Barrow Agegraphic Dark Energy (BADE) and its newer variant, the New…

广义相对论与量子宇宙学 · 物理学 2025-06-13 Banadipa Chakraborty , Tamal Mukhopadhyay , Anamika Kotal , Ujjal Debnath

We construct a generalized interacting model of Barrow Holographic Dark Energy (BHDE) with infrared cutoff being given by the Hubble horizon. We analyze the cosmological evolution of a flat Friedmann-Lema\^itre-Robertson-Walker Universe…

广义相对论与量子宇宙学 · 物理学 2025-03-25 Giuseppe Gaetano Luciano , Jaume Giné

Applying the modified Barrow entropy, inspired by the quantum fluctuation effects, to the cosmological background, and using thermodynamics-gravity conjuncture, the Friedmann equations get modified as well. In this paper, we explore the…

广义相对论与量子宇宙学 · 物理学 2024-12-18 M. Motaghi , A. Sheykhi , E. Ebrahimi

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. The former is an extended black-hole entropy…

广义相对论与量子宇宙学 · 物理学 2021-01-04 Emmanuel N. Saridakis

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…

广义相对论与量子宇宙学 · 物理学 2023-04-10 Ahmad Sheykhi , Maral Sahebi Hamedan

We revisit agegraphic dark energy (ADE) model when the entropy associated with the apparent horizon is in the form of Barrow entropy, $S\sim A^{1+\delta/2}$, where $0\leq\delta\leq1$ indicates the amount of the quantum-gravitational…

广义相对论与量子宇宙学 · 物理学 2023-05-18 A. Sheykhi , S. Ghaffari

In this paper, using Barrow entropy, we propose an interacting model of Barrow holographic dark energy (BHDE). In particular, we study the evolution of a spatially flat FLRW universe composed of pressureless dark matter and BHDE that…

广义相对论与量子宇宙学 · 物理学 2021-01-26 Abdulla Al Mamon , Andronikos Paliathanasis , Subhajit Saha

According to the thermodynamics-gravity conjecture, any modification to the entropy expression leads to the modified cosmological field equations. Based on this, we investigate the cosmological consequences of the modified Friedmann…

广义相对论与量子宇宙学 · 物理学 2024-05-24 Esmaeil Ebrahimi , Ahmad Sheykhi

In this work, we propose a non-interacting model of Barrow holographic dark energy (BHDE) using Barrow entropy in a spatially flat FLRW Universe considering the IR cutoff as the Hubble horizon. We study the evolutionary history of important…

综合物理 · 物理学 2021-01-13 Shikha Srivastava , Umesh Kumar Sharma

We investigate the cosmological implications of entropy-based approaches in the context of Holographic Dark Energy (HDE) and Gravity-Thermodynamics (GT) formalisms. We utilise the extended Barrow entropy form, with the index parameter…

宇宙学与河外天体物理 · 物理学 2025-04-16 Udit K. Tyagi , Sandeep Haridasu , Soumen Basak

In this research, we have reconstructed the extended $f(\mathcal{P})$ cubic gravity and symmetric $f(\mathcal{Q})$ teleparallel gravity from the $(m,n)$-type Barrow Holographic Dark Energy (BHDE) model. We have derived the unknown functions…

广义相对论与量子宇宙学 · 物理学 2025-06-26 Tamal Mukhopadhyay , Banadipa Chakraborty , Anamika Kotal , Ujjal Debnath

We construct Barrow holographic dark energy in the case of non-flat universe. In particular, considering closed and open spatial geometry we extract the differential equations that determine the evolution of the dark-energy density…

广义相对论与量子宇宙学 · 物理学 2021-11-01 Priyanka Adhikary , Sudipta Das , Spyros Basilakos , Emmanuel N. Saridakis
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