标题： 广义引力子的广义对称性 显示英文标题

标题： Generalized Symmetries For Generalized Gravitons

摘要： 我们构造了任意维线性化爱因斯坦引力的广义对称性。 量子场论中的第一性原理迫使广义对称性以对偶对的形式出现。 验证这一预测有助于我们找到全部非平凡守恒荷集——这些守恒荷与2形式和$(D-2)$形式流同样多。 它们的总数为$D(D+1)$。 我们计算了对偶荷对的量子对易子，证明了当边界之间以非平凡方式相互缠绕时，它们非零，否则为零，这符合一般预期。 我们还考虑了一般的线性化高曲率引力。 除了通常的引力子外，这些理论还传播一个自旋为0的模态以及一个有质量的类鬼态自旋为2的模态。 当后者不存在时，理论是幺正的，并且对偶对原则得到尊重。 特别是，我们发现电荷的数量和类型与爱因斯坦引力相同，并且它们对应于爱因斯坦电荷的连续推广。 显示英文摘要

摘要： We construct generalized symmetries for linearized Einstein gravity in arbitrary dimensions. First-principle considerations in QFT force generalized symmetries to appear in dual pairs. Verifying this prediction helps us find the full set of non-trivial conserved charges -- associated, in equal parts, with 2-form and $(D-2)$-form currents. Their total number is $D(D+1)$. We compute the quantum commutators of pairs of dual charges, showing that they are non-vanishing for regions whose boundaries are non-trivially linked with each other and zero otherwise, as expected on general grounds. We also consider general linearized higher-curvature gravities. These propagate, in addition to the usual graviton, a spin-0 mode as well as a massive ghost-like spin-2 one. When the latter is absent, the theory is unitary and the dual-pairs principle is respected. In particular, we find that the number and types of charges remain the same as for Einstein gravity, and that they correspond to continuous generalizations of the Einsteinian ones.