Quantum-Reduced Loop-Gravity: Relation with the Full Theory

Emanuele Alesci (1) , Francesco Cianfrani (2) , Carlo Rovelli (3)

1 HCTLab - Human Computer Technology Laboratory
2 Dipartimento di Fisica
3 CPT - Centre de Physique Théorique - UMR 7332

The quantum-reduced loop-gravity technique has been introduced for dealing with cosmological models. We show that it can be applied rather generically: anytime the spatial metric can be gauge-fixed to a diagonal form. The technique selects states based on reduced graphs with Livine-Speziale coherent intertwiners and could simplify the analysis of the dynamics in the full theory.

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]

Emanuele Alesci, Francesco Cianfrani, Carlo Rovelli. Quantum-Reduced Loop-Gravity: Relation with the Full Theory. Physical Review D, 2013, 88, pp.104001. ⟨10.1103/PhysRevD.88.104001⟩. ⟨hal-00957708⟩