Creating a traversable wormhole
Creating a traversable wormhole
复制标题
创建可穿越的虫洞
DOI:
10.1088/1361-6382/ab436f
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发表时间:
2019
影响因子:
3.5
通讯作者:
Wang, Diandian
中科院分区:
文献类型:
--
作者:
Horowitz, Gary T;Marolf, Don;Santos, Jorge E;Wang, Diandian
We argue that one can nucleate a traversable wormhole via a nonperturbative process in quantum gravity. To support this, we construct spacetimes in which there are instantons giving a finite probability for a test cosmic string to break and produce two particles on its ends. One should be able to replace the particles with small black holes with only small changes to the spacetime away from the horizons. The black holes are then created with their horizons identified, so this is an example of nucleating a wormhole. Unlike previous examples where the created black holes accelerate apart, in our case they remain essentially at rest. This is important since wormholes become harder and harder to make traversable as their mouths become widely separated, and since traversability can be destroyed by Unruh radiation. In our case, back-reaction from quantum fields can make the wormhole traversable.
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