de Sitter JT gravity from double-scaled SYK

2025/05/12 by Okuyama, Kazumi · 4 citations
#FOS: Physical sciences #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2505.08116

Abstract

It is known that the double-scaled SYK model (DSSYK) reduces to JT gravity with a negative cosmological constant by zooming in on the lower edge E=-E₀ of the spectrum. We find that the de Sitter JT gravity (i.e. JT gravity with a positive cosmological constant) is reproduced from DSSYK by taking a scaling limit around the upper edge E=E₀ of the spectrum. We also argue that the appearance of de Sitter JT gravity is consistent with the behavior of the classical solution of the sine dilaton gravity.

Citations

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• Algebraic methods in random matrices and enumerative geometry
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• The dS/CFT Correspondence
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Cited by

• Central Singularity of Three-Dimensional Kerr-de Sitter Black Holes
• Cap amplitudes in random matrix models
• JT de Sitter Gravity as a Model of Coleman-de Luccia Tunneling
• Sphere amplitudes and observing the universe's size

Related

• De Sitter Space, Double-Scaled SYK, and the Separation of Scales in the Semiclassical Limit
• dS JT Gravity and Double-Scaled SYK
• Double-scaled SYK, Chords and de Sitter Gravity
• Double-scaled SYK and de Sitter Holography
• SYK Correlators from 2D Liouville-de Sitter Gravity