A CFT Perspective on Gravitational Dressing and Bulk Locality

Understand

We revisit the construction of local bulk operators in AdS/CFT with special focus on gravitational dressing and its consequences for bulk locality.

• Specializing to 2+1-dimensions, we investigate these issues via the proposed identification between bulk operators and cross-cap boundary states.
• We obtain explicit expressions for correlation functions of bulk fields with boundary stress tensor insertions, and find that they are free of non-local branch cuts but do have non-local poles.
• We recover the HKLL recipe for restoring bulk locality for interacting fields as the outcome of a natural CFT crossing condition.