Year: 2026
Type: article
Abstract: A bstract We revisit the gravity path integral formalism of JT gravity. We explain how to gauge fix the path integral in the presence of asymptotic boundaries and conical defects, and resolve an ambiguity regarding the dilaton gravity operator that creates a conical defect. Along the way we study JT gravity coupled to matter on surfaces with defects of special opening angles, obtaining expressions for partition and two-point functions of matter fields. The two point function involves a summation over all geodesics on the surface, including self-intersecting geodesics, which we formally manage to include.
Source: Journal of High Energy Physics
Authors: Guanda Lin, Mykhaylo Usatyuk
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G1286236842, G1863003419, Particles and Strings in the Gravitating and Evolving Universe, Graduate Research Fellowship Program (GRFP), G3083819904, G42916606, THE GEOMETRY AND FLOW OF QUANTUM INFORMATION: FROM QUANTUM GRAVITY TO QUANTUM TECHNOLOGY, Kavli Institute for Theoretical Physics, Kavli Institute for Theoretical Physics, G969889393
OpenAlex ID: W7141456587