Background-free propagation in loop quantum gravity

Simone Speziale (1, 2)

1 CPT - Centre de Physique Théorique - UMR 6207
2 CPT - Centre de Physique Théorique - UMR 7332

I review the definition of n-point functions in loop quantum gravity, discussing what has been done and what are the main open issues. Particular attention is dedicated to gauge aspects and renormalization.

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]; Physique des Hautes Energies - Théorie [hep-th]

Simone Speziale. Background-free propagation in loop quantum gravity. Advanced Science Letters, 2009, 2, pp.280-290. ⟨10.1166/asl.2009.1036⟩. ⟨hal-00350518⟩