Abstract
We study the Einstein gravity and dust system in three spacetime dimensions as an example of a nonperturbative quantum gravity model with local degrees of freedom. We derive the Hamiltonian theory in the dust time gauge and show that it has a rich class of exact solutions. These include the Bañados–Teitelboim–Zanelli black hole, static solutions with naked singularities, and traveling wave solutions with dynamical horizons. We give a complete quantization of the wave sector of the theory, including a definition of a self-adjoint spacetime metric operator. This operator is used to demonstrate the quantization of deficit angle and the fluctuation of dynamical horizons.
- Received 8 June 2015
DOI:https://doi.org/10.1103/PhysRevD.91.124074
© 2015 American Physical Society