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Thin-shell wormhole from ABGB–de Sitter black holes
International Journal of Modern Physics A ( IF 1.6 ) Pub Date : 2021-05-25 , DOI: 10.1142/s0217751x21500858
Nilofar Rahman 1 , Masum Murshid 1 , Mehedi Kalam 1
Affiliation  

A thin shell wormhole is constructed utilizing the cut and paste technique from ABGB–de Sitter black hole derived by Matyjasek et al. The surface stress localized at the wormhole throat is determined using Darmois–Israel formalism. We examine the attractive and repulsive nature of the thin shell wormhole on which cosmological constant (Λ) has a significant effect. For the fixed values of charge (q) and mass (M), the attractiveness of the wormhole decreases with increasing Λ. We calculate the total amount of exotic matter in the shell, which is not much affected by Λ. For the construction of the wormhole in de Sitter universe, the regular black holes have to be heavily charged with a light mass to minimize the amount of required exotic matter. The stability of the wormhole solution is explored by considering a general equation of state in the form of linear perturbation. The stability regions are shown in the figures.

中文翻译:

来自 ABGB-de Sitter 黑洞的薄壳虫洞

利用 Matyjasek 衍生的 ABGB-de Sitter 黑洞的剪切和粘贴技术构建了一个薄壳虫洞等。位于虫洞喉部的表面应力是使用 Darmois-Israel 形式确定的。我们研究了薄壳虫洞的吸引和排斥性质,宇宙学常数在虫洞上(Λ)有显着的效果。对于收费的固定值(q)和质量(), 虫洞的吸引力随着增加而降低Λ. 我们计算了壳中外来物质的总量,它受的影响不大Λ. 为了在德西特宇宙中建造虫洞,常规黑洞必须充满轻质物质,以最大限度地减少所需外来物质的数量。通过考虑线性扰动形式的一般状态方程来探索虫洞解的稳定性。稳定区域如图所示。
更新日期:2021-05-25
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