论文标题
散射幅度和棉花双复制
Scattering Amplitudes and The Cotton Double Copy
论文作者
论文摘要
我们在拓扑庞大的量规理论和拓扑上的重力中构建了经典的曲率旋转器，并以大量的三粒子振幅表示。我们表明，当振幅重复副本时，曲率纺纱器满足了棉花双拷贝，这是Weyl Double拷贝的三维表亲。此外，我们表明，在某些情况下，棉花双拷贝可以通过降低Weyl Double拷贝来得出。
We construct classical curvature spinors in topologically massive gauge theory and topologically massive gravity, expressed in terms of massive three-particle amplitudes. We show that when the amplitudes double copy, the curvature spinors satisfy the Cotton double copy, the three-dimensional cousin of the Weyl double copy. Furthermore, we show that under certain circumstances the Cotton double copy can be derived via a dimensional reduction of the Weyl double copy.
