论文标题

Brane World宇宙学中的Barrow全息暗能

Barrow Holographic Dark Energy in Brane World Cosmology

论文作者

Chanda, Anirban, Mitra, Arpan Krishna, Ghose, Souvik, Dey, Sagar, Paul, Bikash Chandra

论文摘要

在DGP Brane,RS II Brane-World和Cyclic Universe的背景下,研究了Barrow全息暗能量(BHDE)的宇宙学特征(BHDE)的最新概括。发现具有较小压力的FRW场景和被称为BHDE的暗能量组件可以适应后期加速度,即使在黑暗扇区之间没有相互作用的情况下,也被视为脱离红外线的哈勃地平线。 StateFinder诊断表明,这些模型将来类似于$λCDM$宇宙学。发现BHDE参数$δ$尽管理论上受约束的值范围在描述宇宙的演化方面很重要,但是,在RS-II和DGP Brane中无法获得经典稳定的宇宙学模型。还可以使用观察到的哈勃数据来探测模型的生存能力。

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 found that a flat FRW scenario with pressure less dust and a dark energy component described as BHDE can accommodate late time acceleration with Hubble horizon considered as infrared cut off even in the absence of interaction between the dark sectors. Statefinder diagnostic reveals that these model resemble $ΛCDM$ cosmology in future. It is found that BHDE parameter $Δ$, despite its theoretically constrained range of values, is significant in describing the evolution of the universe, however, a classically stable cosmological model cannot be obtained in the RS-II and DGP brane. Viability of the models is also probed with observed Hubble data.

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