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arXiv 1608.04729gr-qc
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连接局部宇宙弦几何的薄壳

Thin shells joining local cosmic string geometries

Ernesto F. Eiroa, Emilio Rubin de Celis, Claudio Simeone

摘要:

在这篇文章中,我们提出了一个理论建设的时空与薄壳,连接两个不同的本地宇宙弦几何。我们研究了两种类型的全局流形,一种表示具有围绕宇宙弦的薄壳或具有Minkowski度量的空区域的时空,另一种对应于穿过位于壳处的喉部不对称的虫洞。我们分析了保持圆柱对称性的扰动下的静态配置的稳定性。对于这两种类型的几何形状,我们发现,静态配置可以是稳定的适当的参数值。

英文摘要:

In this article we present a theoretical construction of spacetimes with a thin shell that joins two different local cosmic string geometries. We study two types of global manifolds, one representing spacetimes with a thin shell surrounding a cosmic string or an empty region with Minkowski metric, and the other corresponding to wormholes which are not symmetric across the throat located at the shell. We analyze the stability of the static configurations under perturbations preserving the cylindrical symmetry. For both types of geometries we find that the static configurations can be stable for suitable values of the parameters.

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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