论文标题
岛屿和冰山可能对页面曲线没有任何贡献
Islands and Icebergs may contribute nothing to the Page curve
论文作者
论文摘要
我们研究了一个与对称浴室接触的子系统的纠缠熵，该系统完整系统生活在ADS3时空的边界上。系统A被认为位于浴系统B的中间，并且整个系统被视为边界二维CFT的一些固定局部区域。我们通常认为，当我们改变浴室的大小时，总系统中的D.O.F.仍保持固定，而浴室的大小应以保护法为指导。发现该岛和二线（冰山）的贡献是密不可分的，而且总体而言，它们对辐射的页面捕捞没有任何贡献。因此，它们仅对熵的非物理分支有所贡献。辐射的熵公式可以简单地写成至少为{s [a]，s [b]}，包括黑洞。
We study the entanglement entropy of a subsystem in contact with symmetrical bath where the complete system lives on the boundary of AdS3 spacetime. The system-A is taken to be in the middle of the bath system-B and the full system is taken to be some fixed localized region of the boundary 2-dimensional CFT. We generally assume that the d.o.f.s in the total system remain fixed when we vary the size of the bath which is to be guided by the conservation laws. It is found that the island and the subleading (icebergs) contributions are inseparable, and in totality they contribute nothing to the Page-curve of the radiation. As such they contribute only to the unphysical branch of the entropy. The entropy formula of the radiation may simply be written as minimum of {S[A],S[B]} including for the black holes.
