## Four-dimensional quantum gravity with a cosmological constant from three-dimensional holomorphic blocks

H. M. Haggard, M. Han, W. Kamiński, and A. Riello

*Physics Letters B* **752** (258), 2016.

Prominent approaches to quantum gravity struggle when it comes to incorporating a positive cosmological constant in their models. Using quantization of a complex SL(2,ℂ) Chern-Simons theory we include a cosmological constant, of either sign, into a model of quantum gravity.

DOI: 10.1016/j.nuclphysb.2015.08.023

Full text: HaHaKaRiQuantumGravityWithCosmoConstant.pdf