Propagator with positive cosmological constant in the 3D Euclidean quantum gravity toy model - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Classical and Quantum Gravity Année : 2014

Propagator with positive cosmological constant in the 3D Euclidean quantum gravity toy model

Résumé

We study the propagator on a single tetrahedron in a three dimensional toy model of quantum gravity with positive cosmological constant. The cosmological constant is included in the model via q-deformation of the spatial symmetry algebra, that is, we use the Tuarev-Viro amplitude. The expected repulsive effect of dark energy is recovered in numerical and analytic calculations of the propagator at large scales comparable to the infrared cutoff. However, due to the simplicity of the model we do not obtain the exact Newton limit of the propagator. This is a first step toward the similar calculation in the full 3+1 dimensional theory with larger numbers of simplicies.

Dates et versions

hal-00957702 , version 1 (10-03-2014)

Identifiants

Citer

William Bunting, Carlo Rovelli. Propagator with positive cosmological constant in the 3D Euclidean quantum gravity toy model. Classical and Quantum Gravity, 2014, 31 (15), pp.155011. ⟨10.1088/0264-9381/31/15/155011⟩. ⟨hal-00957702⟩
78 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More