社论：全息对偶的新前沿--从量子复杂性和黑洞到流体力学和中子星
Editorial: New Frontiers in Holographic Duality -- From quantum complexity and black holes to hydrodynamics and neutron stars
摘要：
在过去的25年里，全息对偶性彻底改变了我们对规范理论、量子多体系统以及量子黑洞的理解。这个专题是一个关于全息对偶的基本原理及其应用的最新进展的评论文章的集合，特别关注它在很大程度上是跨学科的几个领域。其目的是提供一个足够的背景相关的现象学和其他理论领域，如量子信息理论的研究人员的主要专长是在量子领域，弦和重力，也是必要的概念和全息术的方法，研究人员在其他领域，使这些最新的发展可以掌握，并希望进一步发展更广泛的社会。与基本方面有关的主题包括在量子纠错的框架内理解全息术中的体时空重建以及在解决量子黑洞信息悖论方面的惊人进展;量子复杂性及其在将全息术与量子信息理论联系起来方面的基本作用;介绍了量子黑洞中信息镜像和置乱的量子模拟器的理论和实验进展，以及通过虫洞进行的远程传输，并对虫洞进行了教学评论。与应用全息术相关的主题包括流体动力学吸引子的应用及其唯象意义，中子星中QCD物质状态方程的建模，以及最后估计强子对μ子$g-2$的光-光散射的贡献。
英文摘要：
Over the last twenty five years, holographic duality has revolutionised our understanding of gauge theories, quantum many-body systems and also quantum black holes. This topical issue is a collection of review articles on recent advances in fundamentals of holographic duality and its applications with special focus on a few areas where it is inter-disciplinary to a large measure. The aim is to provide a sufficient background on relevant phenomenology and other theoretical areas such as quantum information theory to researchers whose primary expertise is in quantum fields, strings and gravity, and also the necessary concepts and methods of holography to researchers in other fields, so that these recent developments could be grasped and hopefully further developed by a wider community. The topics relating to fundamental aspects include understanding of bulk spacetime reconstruction in holography in the framework of quantum error correction along with the spectacular advances in resolution of the information paradoxes of quantum black holes; quantum complexity and its fundamental role in connecting holography with quantum information theory; theoretical and experimental advances in quantum simulators for information mirroring and scrambling in quantum black holes, and teleportation via wormholes; and a pedagogical review on wormholes also. The topics related to applied holography include applications to hydrodynamic attractor and its phenomenological implications, modelling of equation of state of QCD matter in neutron stars, and finally estimating hadronic contribution to light-by-light scattering for theoretical computation of the muon's $g-2$.
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