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arXiv 2204.08178hep-th
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带标量场的四维自支撑虫洞

Self-Supporting Wormholes in Four Dimensions with Scalar Field

Ankit Anand

AI总结:

本文研究了 $AdS_4$ 时空取商及特定 $\mathbb{Z}_2$ 商下的时空,通过一阶度规微扰估算物质场反作用,发现合适边界条件可使平均零能量为负,从而形成可穿越虫洞。

摘要:

本文研究了通过对 $AdS_4$ 时空取商得到的时空。进一步考虑了特定 $\mathbb{Z}_2$ 的商。取至度规的一阶微扰,我们估算了物质场对时空几何的反作用。通过将应力-能量张量拉回到覆盖空间上,我们可以计算其期望值。当选择合适的边界条件时,平均零能量变为负值,从而形成可穿越虫洞。

英文摘要:

In this paper, we investigated the space-time obtained by quotients of the $AdS_4$ space-time. Further quotient with specific $\mathbb{Z}_2$ is considered. Taking up to the first-order perturbation in metric, we estimated the backreaction of the matter field on space-time geometry. We can calculate the stress-energy tensor's expected value by pulling it back onto the covering space. The average null energy becomes negative when the suitable boundary condition is chosen, resulting in a traversable wormhole.

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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