arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1901.07545gr-qc
收藏

薄壳环面虫孔

Thin-shell toroidal wormhole

Vladimir Dzhunushaliev, Vladimir Folomeev, Burkhard Kleihaus, Jutta Kunz

摘要:

本文考虑一个具有喉道的拓扑非平凡薄壳虫孔,喉道为$T^2$环面。结果表明:(i)~这样的虫洞相对于喉道的激发是稳定的;(ii)~对于这样的虫洞,并非所有的能量条件都被违反;(iii)~如果任何能量条件被违反,这种违反仅部分地发生在喉道附近的某些区域,并且在其他区域不存在违反。此外,我们还讨论了球形$S^2$虫洞和环形$T^2$虫洞之间的差异进行调查。

英文摘要:

We consider a topologically nontrivial thin-shell wormhole with a throat in the form of a $T^2$ torus. It is shown that: (i)~such a wormhole is stable with respect to excitations of the throat; (ii)~not all energy conditions are violated for such wormholes; (iii)~if any of the energy conditions is violated, this violation occurs only partially in some region near the throat, and in other regions the violation is absent. Also, we discuss the differences between spherical $S^2$ wormholes and toroidal $T^2$ wormholes under investigation.

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。

↑