论文标题
通过字符串传播恢复输入信息
Recovering Infalling Information via String Spreading
论文作者
论文摘要
我们发现S-Matrix的证据表明，纵向弦扩展可以诱导黑洞近骑士区域的早期和晚期系统之间的相互作用。通过将效果推广到封闭的字符串并执行艾科纳尔重新召开，我们发现了一个可拖动的制度，在Schwarzschild Time Slipation $ΔT\ gg gg r_s $下，这些相互作用变得强大。我们在类似于海顿 - 普雷斯基尔的情况下估计了相互信息，并且我们发现，弦传播本身足以使延迟探测器恢复大量的信息中所编码的信息。有趣的开放方向包括分析检测器与UNRUH辐射的相互作用（这可能引入噪声会降低恢复的噪声），并制定包括许多纠缠探测器的最佳检测器设置（这可以通过在振幅中具有巨型依赖性的机化学参数提高敏感性来进一步提高信息恢复）。
We find S-matrix evidence that longitudinal string spreading can induce interactions between early and late time systems in the near-horizon region of a black hole. By generalizing the effect to closed strings and performing an eikonal resummation, we find a tractable regime where these interactions become strong at a Schwarzschild time separation $Δt \gg r_s$. We estimate the mutual information in a scenario analogous to Hayden-Preskill, and we find that string spreading is sufficient in itself for a late-time detector to recover a significant fraction of the information encoded in an infaller's state. Interesting open directions include analysis of the interaction of the detector with Unruh radiation (which may introduce noise that somewhat degrades the recovery), and formulating the optimal detector setup including many entangled detectors (which could further increase the information recovery by enhancing sensitivity to kinematic parameters with subleading dependence in the amplitude).
