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arXiv 2105.04416gr-qc
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能量-动量平方引力中可行的虫洞解

Viable Wormhole Solutions in Energy-Momentum Squared Gravity

M. Sharif, M. Zeeshan Gul

摘要:

本文在能量动量平方引力的背景下,利用Noether对称性方法研究了静态虫洞解。这个新发展的方案解决了大爆炸的奇异性,并在早期产生了可行的宇宙学结果。我们考虑这个理论的特殊模型,建立对称生成元和相应的守恒量。对于常数和变量的红移函数,我们研究了存在可行的穿越虫洞解决方案的尘埃以及非尘埃物质分布和分析这些解决方案的稳定状态。我们调查的正常和有效的能量动量张量的零和弱能量边界的图形解释检查物理上可行的虫洞几何的存在。结果发现,现实的可穿越和稳定的虫洞的解决方案,获得了一个特定的模型,这种重力。

英文摘要:

This paper investigates static wormhole solutions through Noether symmetry approach in the context of energy-momentum squared gravity. This newly developed proposal resolves the singularity of big-bang and yields feasible cosmological results in the early times. We consider the particular model of this theory to establish symmetry generators and corresponding conserved quantities. For constant and variable red-shift functions, we examine the presence of viable traversable wormhole solutions for both dust as well as non-dust matter distributions and analyze the stable state of these solutions. We investigate the graphical interpretation of null and weak energy bounds for normal and effective energy-momentum tensors to examine the presence of physically viable wormhole geometry. It is found that realistic traversable and stable wormhole solutions are obtained for a particular model of this gravity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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