具有轴子场的耗散统一暗流体模型的全息描述

IF 1.8 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS International Journal of Modern Physics D Pub Date : 2023-10-27 DOI:10.1142/s0218271823500852
I. Brevik, A. V. Timoshkin
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引用次数: 0

摘要

在本文中,我们扩展了一个轴子引力模型,并应用全息原理以统一的方式描述了当一般状态方程(EoS)包含体黏度时的早期和晚期宇宙。我们假设一个空间平坦的弗里德曼-罗伯逊-沃克(FRW)宇宙模型。我们使用Nojiri和Odintsov [Eur]提出的广义红外截止全息暗能量的描述。理论物理。J. c . 77 (2017) 528;Relativ将军。引力[j] . 38(2006) 1285],并探索当EoS描述早期宇宙和晚期宇宙中尘埃之间的渐近行为时宇宙的演化。我们探索了体粘度的各种形式,并根据粒子视界计算了红外截止点的解析表达式。通过这种方式,我们通过粘性全息流体模型获得了存在轴子物质的早期和晚期宇宙的统一描述。
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Holographic description of the dissipative unified dark fluid model with axion field
In this paper, we extend an axion [Formula: see text] gravity model, and apply the holographic principle to describe in a unifying manner the early and the late-time universe when the general equation-of-state (EoS) contains a bulk viscosity. We assume a spatially flat Friedmann–Robertson–Walker (FRW) universe model. We use a description based on the generalized infrared-cutoff holographic dark energy proposed by Nojiri and Odintsov [Eur. Phys. J. C 77 (2017) 528; Gen. Relativ. Gravit. 38 (2006) 1285], and explore the evolution of the universe when the EoS describes the asymptotic behavior between the dust in the early universe and the late universe. We explore various forms of the bulk viscosity, and calculate analytical expressions for the infrared cutoffs in terms of the particle horizon. In this way, we obtain a unifying description of the early and the late-time universe in the presence of axion matter, via a viscous holographic fluid model.
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来源期刊
International Journal of Modern Physics D
International Journal of Modern Physics D 地学天文-天文与天体物理
CiteScore
3.80
自引率
9.10%
发文量
181
审稿时长
4-8 weeks
期刊介绍: Gravitation, astrophysics and cosmology are exciting and rapidly advancing fields of research. This journal aims to accommodate and promote this expansion of information and ideas and it features research papers and reviews on theoretical, observational and experimental findings in these fields. Among the topics covered are general relativity, quantum gravity, gravitational experiments, quantum cosmology, observational cosmology, particle cosmology, large scale structure, high energy astrophysics, compact objects, cosmic particles and radiation.
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