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Title:
Unitarity Methods in AdS/CFT
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Abstract:
We discuss how to compute loop amplitudes in AdS/CFT using bulk unitarity methods. The role of scattering amplitudes in AdS is played by the boundary CFT correlation functions. The first bulk method we present is naturally formulated in Euclidean signature and we find a simple, intuitive map to the previous boundary unitarity approach. The second bulk method is intrinsically Lorentzian and generalizes the flat-space Cutkosky rules to AdS. Finally, we will discuss an application of AdS/CFT unitarity to the study of the Regge limit.
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