Work

Note on a centaur geometry: Probing IR de Sitter spacetime holography

Year: 2025

Type: article

Abstract: We explore a centaur geometry in Jackiw-Teitelboim gravity, which is an asymptotically anti–de Sitter (AdS) spacetime but in the IR admits a de Sitter (dS) bubble, with another AdS geometry in the deep IR. Thus, this geometry admits a holographic dual in the sense that it is asymptotically AdS. In an attempt to understand this geometry, we calculate the density of states of the putative boundary dual for such mixed geometries by evaluating the on-shell action. We compute the density of states analytically in the classical limit. The resultant density of states suggests that the degrees of freedom in the IR are reduced in such a putative boundary theory due to the IR modification corresponding to the dS bubble.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/t31n-89gb

Authors: Norihiro Iizuka, Sunil Kumar Sake

Institutions: Kyoto University, National Tsing Hua University, Yukawa Institute for Theoretical Physics

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science

Awards: G4482706451, G5064758364, Emergent Spacetime and Black Hole Structure through the Gauge/Gravity Correspondence