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Classifying boundary conditions in JT gravity: from energy-branes to $\alpha$-branes
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We classify the possible boundary conditions in JT gravity and discuss their exact quantization. Each boundary condition that we study will reveal new features in JT gravity related to its matrix integral interpretation, its factorization properties and ensemble averaging interpretation, the definition of the theory at finite cutoff, its relation to the physics of near-extremal black holes and, finally, its role as a two-dimensional model of cosmology.
Forward citations
Cited by 3 Pith papers
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Anti-scrambling and euclidean folds from observer correlators in de Sitter space
Semiclassical gravity in de Sitter space produces four-point observer correlators whose sign of the scrambling correction is opposite to the black-hole case (anti-scrambling); the authors propose bounded-energy quantu...
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JT gravity on the worldline
Coupling a worldline observer to JT gravity replaces its evolution operator by an exactly computed average over fluctuating Euclidean times; the fluctuations are small in the disk but large on the double trumpet.
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Symmetry TFTs for Continuous Spacetime Symmetries
Continuous spacetime symmetries can be encoded in a (d+1)-dimensional BF/Chern-Simons topological field theory, whose boundary reproduces symmetry generators, symmetry breaking, and anomalies.
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