论文标题

关于在渐近安全重力中虫洞溶液的穿越性

On the traversability of wormhole solutions in asymptotically safe gravity

论文作者

Nilton, M., Furtado, J., Alencar, G.

论文摘要

在本文中,我们研究了两个不同情况下的渐近安全性重力(ASG)的蠕动性遍历性,即球形病例和伪圈病例。我们在蠕虫孔的喉咙中进行了分析,并具有特定的截止函数$ f =ξr$的特定选择。最近,这项研究是在参考\ cite {moti:2020whf}中进行的,但是作者仅考虑一个具有恒定状态参数$ω$的经典源。在这里,我们通过两种方式概括了他们的研究:a)具有经典状态参数,该参数取决于$ω(r)$和b)的ASG改进。我们已经表明,有可能具有异国情调和非疾病的物质具有遍历性,但是这种物质高度依赖于虫洞的参数。

In this paper we study the traversability of a wormhole in the context of Asymptotically Safe Gravity (ASG) for two different cases, namely, the spherical case and the pseudospherical case. We carried out an analysis in the throat of the wormhole with an specific choice of the cutoff function $f=ξR$. Recently, this study has been performed in Ref \cite{Moti:2020whf}, however the authors consider only a classical source with constant state parameter $ω$. Here we have generalized their study in two ways: a) with a classical state parameter which is dependent of the position $ω(r)$ and b) with an ASG improvement of the source. We have showed that it is possible to have traversability with exotic and non-exotic matter, but the kind of matter is highly dependent on the wormhole's parameters.

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