A proposal for 3d quantum gravity and its bulk factorization

Understand

Recent progress in AdS/CFT has provided a good understanding of how the bulk spacetime is encoded in the entanglement structure of the boundary CFT.

• However, little is known about how spacetime emerges directly from the bulk quantum theory.
• We address this question in an effective 3d quantum theory of pure gravity, which describes the high temperature regime of a holographic CFT.
• This theory can be viewed as a $q$-deformation and dimensional uplift of JT gravity.