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Weber, Torsten ; Lents, Marco ; Dieplinger, Johannes ; Urbina, Juan Diego ; Richter, Klaus

Topological gravity for arbitrary Dyson index

Weber, Torsten , Lents, Marco, Dieplinger, Johannes , Urbina, Juan Diego and Richter, Klaus (2025) Topological gravity for arbitrary Dyson index. Journal of High Energy Physics 2025 (88).

Date of publication of this fulltext: 19 Jan 2026 05:48
Article
DOI to cite this document: 10.5283/epub.78436


Abstract

We use the well established duality of topological gravity to a double scaled matrix model with the Airy spectral curve to define what we refer to as topological gravity with arbitrary Dyson index $\upbeta$ ($\upbeta$ topological gravity). On the matrix model side this is an interpolation in the Dyson index between the Wigner-Dyson universality classes, on the gravity side it can be thought of as ...

We use the well established duality of topological gravity to a double scaled matrix model with the Airy spectral curve to define what we refer to as topological gravity with arbitrary Dyson index $\upbeta$ ($\upbeta$ topological gravity). On the matrix model side this is an interpolation in the Dyson index between the Wigner-Dyson universality classes, on the gravity side it can be thought of as interpolating between orientable and unorientable manifolds in the gravitational path integral, opening up the possibility to study moduli space volumes of manifolds ``in between''. Using the perturbative loop equations we study correlation functions of this theory and prove several structural properties, having clear implications for the generalised moduli space volumes. Additionally we give a geometric interpretation of these properties using the generalisation to arbitrary Dyson index of the recently found Mirzakhani-like recursion for unorientable surfaces. Using these properties, we investigate whether $\upbeta$-topological gravity is quantum chaotic in the sense of the Bohigas-Giannoni-Schmit conjecture. Along the way we answer this question for the symplectic Wigner-Dyson class, not studied in the literature yet, and establish strong evidence for quantum chaos for this version of the theory, and thus for all bosonic varieties of topological gravity. We further argue for quantum chaoticity in the general $\upbeta$ case, based on novel constraints we find to be obeyed by genuinely non-Wigner-Dyson parts of the moduli space volumes. As for the general $\upbeta$ case the universal behaviour expected from a chaotic system is not known fully analytically we give a novel way to approach it, starting with the result of $\upbeta$ topological gravity and compare the results to a numerical evaluation of the universal result.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitleJournal of High Energy Physics
Publisher:Springer
Volume:2025
Number of Issue or Book Chapter:88
Date17 November 2025
Additional Information (public)A preprint version of the article is available at arXiv. (https://arxiv.org/abs/2507.03172)
InstitutionsPhysics > Institute of Theroretical Physics > Chair Ferdinand Evers
Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects
Funded by: Deutsche Forschungsgemeinschaft (DFG) (456449460)
Identification Number
ValueType
10.1007/JHEP11(2025)088DOI
Related URLs
URLURL Type
https://arxiv.org/abs/2507.03172Preprint
Keywords2D-Gravity, Matrix Models, AdS-CFT Correspondence
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-784366
Item ID78436

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