标题： 《Python的午餐：解码霍金辐射的几何障碍》 显示英文标题

标题： The Python's Lunch: geometric obstructions to decoding Hawking radiation

摘要： 根据哈罗和海登[arXiv:1301.4504]的研究，尽管黑洞及其辐射的量子态相对简单，但从霍金辐射中提取信息的任务似乎在计算上非常困难。我们追溯了这种计算难度的根源在于连接黑洞与其辐射的爱因斯坦-罗森桥中的几何障碍。受到张量网络模型的启发，我们推测了一个精确的公式，将提取信息的计算复杂性与虫洞的几何性质联系起来——具体来说，是与构成障碍的两个非最小量子极值曲面之间的广义熵差的指数有关。由于其形状，我们将这个障碍称为“Python的午餐”，以类比爬行动物餐后的隆起。 显示英文摘要

摘要： According to Harlow and Hayden [arXiv:1301.4504] the task of distilling information out of Hawking radiation appears to be computationally hard despite the fact that the quantum state of the black hole and its radiation is relatively un-complex. We trace this computational difficulty to a geometric obstruction in the Einstein-Rosen bridge connecting the black hole and its radiation. Inspired by tensor network models, we conjecture a precise formula relating the computational hardness of distilling information to geometric properties of the wormhole - specifically to the exponential of the difference in generalized entropies between the two non-minimal quantum extremal surfaces that constitute the obstruction. Due to its shape, we call this obstruction the "Python's Lunch", in analogy to the reptile's postprandial bulge.