论文标题
巨大的岛屿
Massive Islands
论文作者
论文摘要
我们使用全息思想评论了重力质量在对页面曲线的最新计算中的作用。在具有大量重力的系统中，已经执行了超过2+1个时空维度的页面曲线的所有可靠计算。这些计算中的关键成分是岛屿的形成，岛屿是构成其他地方自由度熵的区域。虽然最简单地被忽略了，但确实确实，重力的质量似乎并没有显着影响文献中出现的计算。我们使用自由来改变重力质量，从而在一般维度中提供一个非常简单的分析可牵引岛形成模型。但是，我们确实指出，如果人们试图取得零重力质量的极限，那么岛屿的任何贡献都会消失。这就提出了一个问题，在多大程度上纠缠岛可以在标准的无质量重力中发挥作用。
We comment on the role of the graviton mass in recent calculations of the Page curve using holographic ideas. All reliable calculations of the Page curve in more than 2+1 spacetime dimensions have been performed in systems with massive gravitons. A crucial ingredient in these calculations is the formation of islands, regions that contribute to the entropy of degrees of freedom located elsewhere. While most often simply ignored, it is indeed true that mass of the graviton does not appear to significantly affect the calculations that appeared in the literature. We use the freedom to change the graviton mass to give an extremely simple model of analytically tractable island formation in general dimensions. We do however note that if one attempts to take the limit of zero graviton mass, any contribution from the islands disappears. This raises the question to what extent entanglement islands can play a role in standard massless gravity.
