REVIEW 5 cited by
New boundary conditions for AdS$_2$
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
We describe new boundary conditions for AdS$_2$ in Jackiw-Teitelboim gravity. The asymptotic symmetry group is enhanced to $\r{Diff}(S^1)\ltimes C^\infty(S^1)$ whose breaking to $\r{SL}(2,\R)\times \r{U}(1)$ controls the near-AdS$_2$ dynamics. The action reduces to a boundary term which is a generalization of the Schwarzian theory and can be interpreted as the coadjoint action of the warped Virasoro group. This theory reproduces the low-energy effective action of the complex SYK model. We compute the Euclidean path integral and derive its relation to the random matrix ensemble of Saad, Shenker and Stanford. We study the flat space version of this action, and show that the corresponding path integral also gives an ensemble average, but of a much simpler nature. We explore some applications to near-extremal black holes.
Forward citations
Cited by 5 Pith papers
-
An entropic puzzle in periodic dilaton gravity and DSSYK
Gauging a momentum shift symmetry in sine dilaton gravity yields the DSSYK spectrum, makes negative-length states null, and predicts a finite entropy S=2πθ−2θ² instead of the Bekenstein-Hawking area law.
-
Tantum Gravity
A triple-scaling limit of quantum gravity keeps black hole thermodynamics finite and reproduces the Hawking temperature.
-
Quantum gravity around ultracold black holes from DSSYK
Ultracold Reissner-Nordström de Sitter black hole fluctuations are proposed to be described by a gauged near-flat dilaton gravity model with a Gaussian spectral density, yielding a finite partition function and dynami...
-
Gravitational dynamics of near-extreme Kerr (Anti-)de Sitter black holes
Near-extremal Kerr-dS4 and Kerr-AdS4 black holes admit a sector of metric perturbations whose linearized dynamics is the JT equation, with a Schwarzian effective action for the AdS case.
-
Conserved charges and asymptotic symmetries of BTZ-like black holes in Einstein-bumblebee gravity
For BTZ-like black holes in Einstein-bumblebee gravity, the conserved charges, central charges, and entropy all acquire factors of the Lorentz-violating parameter, and the near-horizon extremal case admits a Virasoro-...
Discussion (0). Continue with ORCID to comment.