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arXiv 1102.5284gr-qc
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平坦FRW时空中薄壳虫孔的演化

On thin-shell wormholes evolving in flat FRW spacetimes

M. La Camera

摘要:

分析了一类在平坦FRW时空中演化的球对称薄壳虫孔的稳定性。这里考虑的虫孔在喉部由状态方程为$\mathcal{P}=wσ$的理想流体支撑,并且具有等于$aR$的物理半径,其中$a$是描述喉部动力学的时间相关函数,而$R$是背景比例因子。利用动力系统的稳定性分析方法对虫洞的稳定性进行了研究。

英文摘要:

We analize the stability of a class of thin-shell wormholes with spherical symmetry evolving in flat FRW spacetimes. The wormholes considered here are supported at the throat by a perfect fluid with equation of state $\mathcal{P}=wσ$ and have a physical radius equal to $aR$, where $a$ is a time-dependent function describing the dynamics of the throat and $R$ is the background scale factor. The study of wormhole stability is done by means of the stability analysis of dynamic systems.

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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