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arXiv 2305.03362gr-qchep-th
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$f(Q,T)$引力中的非奇异静态球对称薄壳虫洞解

Non-exotic static spherically symmetric thin-shell wormhole solution in $f(Q,T)$ gravity

Moreshwar Tayde, Sayantan Ghosh, P. K. Sahoo

AI总结:

本研究在线性$f(Q,T)=αQ+βT$引力框架下,通过参数空间解析推导得出满足全时空能量条件的可穿越虫洞解,还利用Israel接合条件分析了薄壳稳定性及相关物理量变化。

摘要:

本研究在线性$f(Q, T) = αQ + βT$引力框架内开展了可穿越虫洞解的分析,确保所有能量条件在整个时空中均成立。本研究提出的解是通过对虫洞模型相关参数空间进行全面解析推导得出的,涉及红移函数与形状函数的控制指数、虫洞喉半径($r_0$)、喉处红移函数值($ϕ_0$)以及模型参数($α$和$β$)。我们还确定了这些自由参数的取值边界,以保证能量条件在全时空满足,并给出了两个具体解。此外,我们利用Israel(以色列)接合条件研究了虫洞周围薄壳的稳定性,计算了此类薄壳的NEC(零能量条件)判据与势能,以及它们随所选形状函数的变化情况。

英文摘要:

In this study, we have conducted an analysis of traversable wormhole solutions within the framework of linear $f(Q, T) = αQ + βT$ gravity, ensuring that all the energy conditions hold for the entire spacetime. The solutions presented in this study were derived through a comprehensive analytical examination of the parameter space associated with the wormhole model. This involved considering the exponents governing the redshift and shape functions, as well as the radius of the wormhole throat ($r_0$), the redshift function value at the throat ($ϕ_0$), and the model parameters ($α$ and $β$). Also, we have established bounds on these free parameters that guarantee the satisfaction of the energy conditions throughout spacetime and have also provided two solutions. Further, we have used the Israel junction condition to see the stability of a thin-shell around the wormhole. We have also calculated the NEC criteria and potential for such a thin-shell and how it varies with the chosen shape function.

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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