We apply an ADM deparametrization strategy to radial canonical $\Lambda < 0$ gravity in three dimensions. It gives rise to a concise notation for previous holographic interpretations in terms of an identified radial 'volume time' and 'true' ADM degrees of freedom. We further discuss York time and conformal boundary conditions in this context, and construct a BTZ wavepacket solution to the radial WdW equation.
Applying ADM deparametrization to radial canonical Λ<0 gravity in 3D produces a concise notation for prior holographic interpretations via a radial 'volume time' and true ADM degrees of freedom, and admits a BTZ wavepacket solution to the radial WdW equation.
That a radial coordinate can serve as a well-defined global 'time' for deparametrization across the relevant solution space (including BTZ), and that the chosen conformal/York-time boundary conditions are consistent with the WdW quantization scheme used to construct the wavepacket.
1/ In 3D AdS gravity, the authors treat the radial direction as 'time' and apply the ADM canonical split, isolating physical degrees of freedom from gauge ones. 2/ This reframes earlier holographic radial-Hamiltonian work in compact notation, and lets them discuss York time and conformal boundary conditions in the same language. 3/ As a concrete output they build a BTZ wavepacket solving the radial Wheeler-DeWitt equation — a quantum-gravity state peaked on the black hole geometry.
They use the distance from the center as a clock to describe 3D black holes with quantum gravity math.
Abstract-only review. The paper sits in a well-developed line of work on radial Hamiltonian / holographic renormalization in AdS3 and on WdW quantization with York time. The claims (deparametrization, wavepacket construction) are technically plausible and modest in scope — this reads as a clarifying/notational contribution plus one explicit example, not a foundational result. Without the full text I cannot check the BTZ wavepacket construction, the treatment of constraints, or whether the deparametrization is global. Confidence kept LOW per protocol. No red flags visible from the abstract; verdict held as UNVERDICTED since substantive correctness assessment requires the body and equations.