Causality in gravity, higher spins and the AdS/CFT duality

该项目的主要目的是探索具有弱耦合引力对偶描述的共形场论（CFT）的因果性和能量通量正性所施加的约束。其中一些要求是新的，没有在文献中研究过。这些限制了可以添加到低能量重力有效作用而不破坏其一致性的更高曲率修正。他们还将这些约束的松弛与理论谱中新的高自旋粒子的加入联系起来。此外，这个无限的新场集必须以自洽的方式包含，它们的一些耦合也受到约束。这将为高曲率修正和高自旋在引力一致性和非引力场理论中的作用提供重要线索。该项目将把研究引力和AdS/CFT因果问题的研究人员与研究高自旋理论的研究人员聚集在一起，以这两个主题的最新发展为基础。

The main purpose of the project would be to explore constraints imposed by causality and positivity of energy fluxes on conformal field theories (CFT) with a weakly coupled gravitational dual description. Some of these requirements are new and have not been studied in the literature. These constrain the kind of higher curvature corrections that can be added to the low energy gravity effective action without spoiling its consistency. They also tie the relaxation of some of these constraints to the addition of new higher spin particles in the spectrum of the theory. Moreover, this infinite set of new fields has to be included in a self-consistent way, some of their couplings being also constrained. This will provide important clues on the role of higher curvature corrections and higher spins in the consistency of gravity as well as non-gravitational field theories.The project would bring together researchers working on causal issues in gravity and AdS/CFT with those working on higher spin theories, building up on the latest developments in both topics.