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arXiv 2405.03220hep-thgr-qc
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通过Page曲线的几何约束:来自岛规则(Island Rule)与量子聚焦猜想(Quantum Focusing Conjecture)的洞见

Geometric Constraints via Page Curves: Insights from Island Rule and Quantum Focusing Conjecture

Ming-Hui Yu, Xian-Hui Ge

AI总结:

本研究针对Page曲线与岛范式的反问题,推导静态黑洞中岛存在且复现Page曲线的黑化因子几何约束,发现视界附近f(r)二阶导数为负是充分判据,得到量子聚焦猜想支持。

摘要:

我们探究与Page曲线现象和岛范式相关的反问题,研究支撑黑洞蒸发过程的几何条件——该过程中信息得以保留且岛(island)显现,从而产生特征性的Page曲线。针对渐近闵可夫斯基时空或(反)德西特时空中的一大类静态黑洞度规,我们推导了岛存在且能复现Page曲线时关于黑化因子$f(r)$的关键约束。具体而言,我们揭示了一个充分但非普遍必要的判据:在事件视界附近($r \sim r_h+ {\cal O} (G_N)$处),$f(r)$的二阶导数为负,即$f^{\prime \prime} (r)<0$,该判据可确保Page曲线的出现,且不受特定理论模型的限制。这一关键发现得到了量子聚焦猜想(Quantum Focusing Conjecture)基本原理的支持。

英文摘要:

Exploring the inverse problem tied to the Page curve phenomenon and island paradigm, we investigate the geometric conditions underpinning black hole evaporation where information is preserved and islands manifest, giving rise to the characteristic Page curve. Focusing on a broad class of static black hole metrics in asymptotically Minkowski or (anti-)de Sitter spacetimes, we derive a pivotal constraint on the blacken factor $f(r)$ for which the island exists and reproduce the Page curve. Specifically, we reveal that a sufficient yet not universally necessary criterion -- manifested in the negativity of the second derivative of $f(r)$, i.e. $f^{\prime \prime} (r)<0$, in proximity to the event horizon where $r \sim r_h+ {\cal O} (G_N)$, ensures the emergence of Page curves in a manner transcending specific theoretical models. This pivotal finding, supported by the tenets of the quantum focusing conjecture.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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