论文标题

动态的薄壳黑弹跳可穿越的虫洞

Dynamic thin-shell black-bounce traversable wormholes

论文作者

Lobo, Francisco S. N., Simpson, Alex, Visser, Matt

论文摘要

基于最近引入的黑手弹空间,我们将考虑在标准的一般相对性的背景下构建相关的球形对称薄壳可穿越的虫洞。所有真正不寻常的物理都用一个简单的参数$ a $编码,该参数$ a $是反弹的比例。使讨论尽可能接近标准的一般相对论是一次仅调整模型的一个功能的理论家版本。我们将修改标准的薄壳可穿越的虫洞构造,每个散装区域现在都是黑手的时空,并且薄壳的物理学是(尽可能)从爱因斯坦方程式衍生的。此外,我们将通过考虑静态溶液周围的线性径向扰动来对喉咙进行动态分析,并证明虫洞的稳定性等于为属于虫洞喉咙上的外来材料选择合适的特性。该结构足够新颖,可以很有趣,并且足够简单,以至于可以拖延。

Based on the recently introduced black-bounce spacetimes, we shall consider the construction of the related spherically symmetric thin-shell traversable wormholes within the context of standard general relativity. All of the really unusual physics is encoded in one simple parameter $a$ which characterizes the scale of the bounce. Keeping the discussion as close as possible to standard general relativity is the theorist's version of only adjusting one feature of the model at a time. We shall modify the standard thin-shell traversable wormhole construction, each bulk region now being a black-bounce spacetime, and with the physics of the thin shell being (as much as possible) derivable from the Einstein equations. Furthermore, we shall apply a dynamical analysis to the throat by considering linearized radial perturbations around static solutions, and demonstrate that the stability of the wormhole is equivalent to choosing suitable properties for the exotic material residing on the wormhole throat. The construction is sufficiently novel to be interesting, and sufficiently straightforward to be tractable.

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