艾纳斯托尖峰和等温暗物质密度曲线对 f(ℜ,Lm) 引力下虫洞几何形状的影响

IF 5 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Physics of the Dark Universe Pub Date : 2024-06-28 DOI:10.1016/j.dark.2024.101564
S.K. Maurya , Jitendra Kumar , Sweeti Kiroriwal , Abdelghani Errehymy
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引用次数: 0

摘要

在本文中,我们揭示了在新发展的f(ℜ,Lm)引力理论下产生的可穿越虫洞解决方案的惊人特性。我们采用了两种不同的暗物质密度曲线--艾纳斯托尖峰(Einasto spike)和伪等温模型(Pseudo-isothermal model)--来证明喉部半径分别为1.18千米和1.41千米的稳定虫洞几何形态的存在。通过严格的分析和绘图调查,我们深入研究了这些虫洞结构的奇异物质特征,并结合能量条件分析了它们的物质含量。令人印象深刻的是,这两个虫洞模型的绝热指数都大于 1.34(Γ>43),这表明它们具有内在的稳定性。此外,我们对各向异性参数的研究揭示了这些虫洞解决方案的吸引力,这是它们潜在可穿越性的关键属性。这项新工作不仅拓宽了我们对修正引力理论的理解,而且凸显了可穿越虫洞的非凡可能性,为理论物理和探索奇异时空几何开辟了新途径。
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Effect of Einasto spike and isothermal dark matter density profile on the geometry of wormhole in f(ℜ,Lm) gravity

In the present article, we uncover striking properties of traversable wormhole solutions generated under a newly developed f(,Lm) gravitational theory. Two distinct dark matter density profiles—the Einasto spike and the Pseudo-isothermal model—are employed to demonstrate the existence of stable wormhole geometries with throat radii of 1.18 km and 1.41 km, respectively. Through a rigorous analytical and plot-based survey, we delve deeper into the exotic matter characteristics of these wormhole structures and analyze their matter content in the context of energy conditions. Impressively, both wormhole models exhibit an adiabatic index greater than 1.34 (Γ>43), indicating their inherent stability. What is more, our study of the anisotropy parameter reveals the attractive nature of these wormhole solutions, a crucial property for their potential traversability. This novel work not only broadens our understanding of modified gravity theories but also highlights the remarkable possibilities of traversable wormholes, opening up new avenues in theoretical physics and in the exploration of exotic spacetime geometries.

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来源期刊
Physics of the Dark Universe
Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-
CiteScore
9.60
自引率
7.30%
发文量
118
审稿时长
61 days
期刊介绍: Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact. The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.
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