论文标题
世界表的天体双复制
Celestial double copy from the worldsheet
论文作者
论文摘要
使用AmbitWistor字符串，我们计算树级的天体振幅，以使用BIADJOINT标量，Yang-Mills和Gravility到所有多重性。它们以紧凑型CHY样公式表示，具有运算符值的散射方程和作用于广义高几幅函数的分子。通过这些，我们将天体双复制扩展到具有任意数量外部状态的树级幅度。我们还展示了如何在天体振幅中实现颜色界面二元性及其在广义扭曲的共同体学理论方面的解释。
Using the ambitwistor string, we compute tree-level celestial amplitudes for biadjoint scalars, Yang-Mills and gravity to all multiplicities. They are presented in compact CHY-like formulas with operator-valued scattering equations and numerators acting on a generalized hypergeometric function. With these we extend the celestial double copy to tree-level amplitudes with arbitrary number of external states. We also show how color-kinematics duality is implemented in celestial amplitudes and its interpretation in terms of a generalized twisted cohomology theory.
