多体纠缠可以探测二分纠缠无法看到的虫洞模参数
Multipartite Entanglement Can Probe Wormhole Moduli Invisible to Bipartite Entanglement
- Yonago College, National Institute of Technology(米子工业高等专门学校)
- National Tsing Hua University(国立清华大学)
- Yukawa Institute for Theoretical Physics, Kyoto University(京都大学汤川理论物理研究所)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
本文发现,在有限Fenchel-Nielsen扭曲下,$\tt q=4$多熵能探测到完整二分RT熵向量不变的虫洞模空间区域中的扭曲,从而证明多体纠缠可揭示二分纠缠无法看到的体几何信息。
AI中文摘要:
在配套论文中,我们发现对于四边界AdS$_3$虫洞,在未扭曲点附近,每当完整的二分Ryu-Takayanagi熵向量对Fenchel-Nielsen扭曲不敏感时,全息$\tt q=4$多熵也不敏感。这里我们表明,在有限扭曲下情况会发生变化。扭曲会加长交叉测地线,从而扩大所有二分RT熵保持不变的区域。在这个扩大区域的某部分,一个对扭曲敏感的$\tt q=4$网络成为全局最小。因此,我们在虫洞模空间中找到了一个开放区域,在该区域中,完整的二分RT熵向量完全不变,而$\tt q=4$多熵却能探测到扭曲。我们的结果提供了一个明确的例子,表明$\tt q=4$真正的多熵可以探测到所有二分纠缠熵都看不到的体几何信息。
英文摘要:
In a companion paper, we found that near the untwisted point of a four-boundary AdS$_3$ wormhole, whenever the complete bipartite Ryu-Takayanagi entropy vector is insensitive to a Fenchel-Nielsen twist, the holographic $\mathtt q=4$ multi-entropy is insensitive as well. Here we show that the situation changes at finite twist. The twist lengthens the crossing geodesics and thereby enlarges the region in which all bipartite RT entropies remain invariant. In part of this enlarged region, a twist-sensitive $\mathtt q=4$ network becomes globally minimal. We thus find an open region of wormhole moduli space in which the complete bipartite RT entropy vector is exactly unchanged while the $\mathtt q=4$ multi-entropy detects the twist. Our result provides an explicit example in which the $\mathtt q=4$ genuine multi-entropy probes bulk geometric information invisible to all bipartite entanglement entropies.