Do holographic CFT states have unique semiclassical bulk duals?

We discuss a situation where a holographic CFT state has multiple semiclassical bulk duals. In our example, a given holographic state has two simple, semiclassical descriptions, one with a closed universe, constructed using the gravitational path integral, and one without a closed universe, constructed using the extrapolate dictionary. This highlights an ambiguity in the AdS/CFT dictionary. We propose various options for resolving this tension although none is perfectly satisfactory. We also discuss what this implies for the black hole interior and the gravitational path integral.

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Publication Details

Journal
International Journal of Modern Physics D
Published
2025-09-18
DOI
https://doi.org/10.1142/s0218271825440250
Citations
6
Primary Topic
Black Holes and Theoretical Physics
Type
article
Field-Weighted Citation Impact
11.22
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article

Do holographic CFT states have unique semiclassical bulk duals?

Stefano Antonini, Pratik Rath
6 citations
International Journal of Modern Physics D
Black Holes and Theoretical Physics
11.22
article

Do holographic CFT states have unique semiclassical bulk duals?

Stefano Antonini, Pratik Rath
article en
6 citations

Abstract

We discuss a situation where a holographic CFT state has multiple semiclassical bulk duals. In our example, a given holographic state has two simple, semiclassical descriptions, one with a closed universe, constructed using the gravitational path integral, and one without a closed universe, constructed using the extrapolate dictionary. This highlights an ambiguity in the AdS/CFT dictionary. We propose various options for resolving this tension although none is perfectly satisfactory. We also discuss what this implies for the black hole interior and the gravitational path integral.

International Journal of Modern Physics DVol. 34(16)
Center for Theoretical Biological Physics (US)
Openalex Percentile: Top 2%
Black Holes and Theoretical Physics
11.22
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Do holographic CFT states have unique semiclassical bulk duals? — Stefano Antonini, Pratik Rath · International Journal of Modern Physics D (2025) | TGRS Research Map | TGRS