Explicit reconstructions in modified near-horizon AdS2 and BTZ geometries recover prior non-locality estimates controlled by a throat parameter and exhibit dip-ramp-plateau spectral form factors in 3D.
Local bulk operators in AdS/CFT and the fate of the BTZ singularity
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abstract
This paper has two parts. First we review the description of local bulk operators in Lorentzian AdS in terms of non-local operators in the boundary CFT. We discuss how bulk locality arises in pure AdS backgrounds and how it is modified at finite N. Next we present some new results on BTZ black holes: local operators can be defined inside the horizon of a finite N BTZ black hole, in a way that suggests the BTZ geometry describes an average over black hole microstates, but with finite N effects resolving the singularity.
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hep-th 1years
2026 1verdicts
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Near-horizon modifications in finite $N$ holography
Explicit reconstructions in modified near-horizon AdS2 and BTZ geometries recover prior non-locality estimates controlled by a throat parameter and exhibit dip-ramp-plateau spectral form factors in 3D.