nLab
Jackiw-Teitelboim gravity

Contents

Contents

Idea

JT-gravity (Teitelboim 83, Jackiw 85) is gravity in 1+1 dimensions with a dilaton.

Properties

Relation to near-extremal black holes

JT-gravity gives a good approximation to the AdS-factor in the near horizon geometry AdS 2×S d2AdS_2\times S^{d-2} of near-extremal black holes in dd-dimensional spacetime (NSST18, MTV18).

Via the AdS/CFT-dual of JT-gravity (Almheiri-Polchinski 14) given by random matrix theory (Saad-Shenker-Stanford 19, Stanford-Witten 19) this allows to compute genuine quantum gravity-aspects of near-extremal black holes, such as notable their microscopic black hole entropy. Computations are now under way…

Notice that near-extremal black holes have been observed in nature, by the Chandra telescope see eg here.

References

General

The theory is due to

See also

AdS/CFT Holography

In AdS/CFT For AdS 2/CFT 1AdS_2/CFT_1:

Relation to random matrix theory (via AdS/CFT and topological recursion):

Application to near-extremal near-horizons

Application to near horizon geometry of near-extremal black holes:

Last revised on July 10, 2019 at 11:19:48. See the history of this page for a list of all contributions to it.