论文标题
任何无质量粒子的保守渐近电荷
Conserved asymptotic charges for any massless particle
论文作者
论文摘要
我们通过在Minkowski时空检查其自由理论来计算与无质量颗粒的渐近对称性相关的保守电荷。我们给出了一个程序，以系统地推断出空间无穷大的无质量领域的掉落，并表明它在切线空间中表达时具有普遍的行为。我们是为通用的无质量颗粒这样做的。我们不施加量规固定条件，使我们能够在众所周知的超级翻译费用之外发现新的非零电荷。我们还计算了某些低自旋颗粒的双重配方中的保守电荷，并认为这导致了无限数量的新保守电荷。
We compute the conserved charges associated with the asymptotic symmetries of massless particles by examining their free theory in Minkowski spacetime. We give a procedure to systematically deduce the fall off of the massless fields at spatial infinity and show that it has a universal behaviour when expressed in tangent space. We do this for generic massless particles. We do not impose gauge fixing conditions which allows us to uncover new nonzero charges for the graviton beyond the well-known supertranslation charges. We also compute conserved charges in the dual formulations of certain low spin particles and argue that this leads to an infinite number of new conserved charges.
