论文标题
违反了复制虫洞的全球对称性和黑洞残余的命运
A violation of global symmetries from replica wormholes and the fate of black hole remnants
论文作者
论文摘要
我们表明，欧几里得路径积分中的复制虫孔的存在导致对量子重力低能描述中存在的任何全局对称性的无扰动违规侵犯电荷保护。明确地，我们计算了几个二维量子重力模型中不同带电状态之间的散射概率，并找到一个非呈现答案。这表明所有带电状态的集合通常都过于完整，这对可能带有全球对称性电荷的黑洞残留物的命运产生了巨大后果。在全息环境中，我们认为，在整体平均后，在有效描述中，这种对称性的存在应作为一个新兴的全局对称性出现在边界上。
We show that the presence of replica wormholes in the Euclidean path integral of gravity leads to a non-perturbative violation of charge conservation for any global symmetry present in the low-energy description of quantum gravity. Explicitly, we compute the scattering probability between different charged states in several two-dimensional models of quantum gravity and find a non-vanishing answer. This suggests that the set of all charged states is typically over-complete, which has drastic consequences for the fate of black hole remnants that could carry a global symmetry charge. In the holographic context, we argue that the presence of such a symmetry in the effective description of the bulk should appear on the boundary as an emergent global symmetry after ensemble averaging.
