One-loop Gluon Amplitudes in AdS

Understand

We initiate the study of one-loop gluon amplitudes in AdS space.

• These amplitudes were recently computed at tree level for a variety of backgrounds of the form $AdS_{d+1} \times S^3$.
• For concreteness, we compute the one-loop correction to the massless gluon amplitude on $AdS_5\times S^3$, which corresponds to the four-point correlator of the flavor current multiplet in the dual 4d $\mathcal{N}=2$ SCFT.
• This requires solving a mixing problem that involves tree-level amplitudes of arbitrarily massive Kaluza-Klein modes.