论文标题
JT重力中的操作岛和黑洞耗散
Operational islands and black hole dissipation in JT gravity
论文作者
论文摘要
在这项工作中，我们重新审视了在2d Jackiw-Teitelboim（JT）重力中找到纠缠岛的问题。我们对传统设置进行了以下调整：（1）我们没有明确将其搭配到非抛售系统，而是仅将纯吸收实施到基准检测器中，（2）我们利用了由边界观察者的Worderver的Worderver定义的操作定义的重命名的物质纠缠熵。我们表明，这导致了我们明确计算的统一页面曲线，并在活动视野外面的一个岛上。接下来，我们将分析扩展到带电和/或超对称黑洞。我们发现，在某个策略中，带电的黑洞在散发超放射之前首先生长，然后最终消散。将系统嵌入超对称设置时，我们会获得类似的结果。
In this work, we revisit the problem of finding entanglement islands in 2d Jackiw-Teitelboim (JT) gravity. We implement the following adjustments to the traditional setup: (1) we do not explicitly couple to a non-gravitating system, instead we implement only pure absorption into a fiducial detector, (2) we utilise the operationally defined renormalised matter entanglement entropy, as defined by the boundary observer's wordline. We show that this leads to a unitary Page curve that we explicitly compute, with an island outside of the event horizon. Next, we extend the analysis to a charged and/or supersymmetric black hole. We find that in a certain regime the charged black hole grows first as it emits superradiation before eventually dissipating. We obtain similar results when embedding the system in a supersymmetric setting.
