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arXiv 0904.2928gr-qc
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一个意想不到的拓扑检查器

An unexpected topological censor

Peter K. F. Kuhfittig

摘要:

具有宇宙学常数Λ的Morris-Thorne虫洞已经被广泛研究,甚至允许用空间变量标量来代替Λ。然而,如果Λ既依赖于空间又依赖于时间,那么这些虫洞就不可能存在。因此,这样的Λ将充当拓扑删失器。虽然不太可能对现在产生影响,但通货膨胀可能产生的宇宙学后果是不可忽视的。

英文摘要:

Morris-Thorne wormholes with a cosmological constant Λhave been studied extensively, even allowing Λto be replaced by a space variable scalar. These wormholes cannot exist, however, if Λis both space and time dependent. Such a Λwill therefore act as a topological censor. While not likely to have a bearing on the present, possible cosmological consequences of inflation cannot be discounted.

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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