论文标题
纠缠岛与无质量重力
Entanglement Island versus Massless Gravity
论文作者
论文摘要
纠缠群岛在最近的突破中在解决黑洞信息悖论方面起着至关重要的作用。受双重全息图的启发，人们认为纠缠岛只能在大量重力中存在。有很多证据，但也有关于这种猜想的辩论。本文在楔形全息图中恢复了无质量的纠缠岛，勃板上有负DGP重力。但是，负DGP重力的频谱包括一个巨大的幽灵，这意味着模型不稳定。我们的工作支持这样的观点，即如果一个人通过最大程度地减少纠缠熵来划分辐射和黑洞区域，则没有定义明确的Braneworld模型中没有纠缠岛。但是，这样的分区导致零辐射区域不包含任何信息。辐射区域是否还有其他物理非平凡分区是一个悬而未决的问题，值得进一步研究。
Entanglement islands play an essential role in the recent breakthrough in addressing the black hole information paradox. Inspired by double holography, it is conjectured that the entanglement islands can exist only in massive gravity. There are many pieces of evidence but also debates for this conjecture. This paper recovers the massless entanglement island in wedge holography with negative DGP gravity on the brane. However, the spectrum of negative DGP gravity includes a massive ghost, implying the model is unstable. Our work supports the view that there is no entanglement island in a well-defined braneworld model of massless gravity if one divides the radiation and black hole regions by minimizing entanglement entropy. However, such a partition results in a zero radiation region containing no information. Whether there are other physical non-trivial partitions of the radiation region is an open question and deserves further study.
