论文标题
来自二维BCFT的平均边界的半经典重力
Semiclassical Gravity from Averaged Boundaries in two-dimensional BCFTs
论文作者
论文摘要
将半经典重力解释为CFT的一体平均水平，这在理解分解问题和信息悖论方面提供了很大的进步。在本文中，我们考虑了在二维边界形成场理论（BCFTS）中的边界条件上的平均值。我们表明，边界平均不仅在产生虫洞贡献方面起着重要作用，而且在解决以下问题方面也起着重要作用。在ADS/BCFT中的一般设置中，可以找到手大器具有（自）交集的非物理解决方案。我们表明，平均可以很好地解决这个交叉问题。这提供了另一个证据，表明平均在重现爱因斯坦重力中起着重要作用。我们还建议平均提供岛上模型的BCFT双重。
The interpretation of semiclassical gravity as an ensemble-average of CFTs has provided much progress in understanding the factorization problem and the information paradox. In this article, we consider an averaging over boundary conditions in two-dimensional boundary conformal field theories (BCFTs). We show that the boundary averaging plays an important role not only in producing wormhole contributions but also in resolving the following problem. In general setups in AdS/BCFT, one can find unphysical solutions where branes have (self-)intersections. We show that the averaging nicely resolves this intersection problem. This provides another piece of evidence that averaging plays an important role in reproducing Einstein gravity. We also propose that the averaging provides a BCFT dual of the island model.
