The face amplitude of spinfoam quantum gravity

Eugenio Bianchi (1, 2) , Daniele Regoli (1, 2) , Carlo Rovelli (1, 2)

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

The structure of the boundary Hilbert-space and the condition that amplitudes behave appropriately under compositions determine the face amplitude of a spinfoam theory. In quantum gravity the face amplitude turns out to be simpler than originally thought.

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

Eugenio Bianchi, Daniele Regoli, Carlo Rovelli. The face amplitude of spinfoam quantum gravity. Classical and Quantum Gravity, 2010, 27, pp.185009. ⟨10.1088/0264-9381/27/18/185009⟩. ⟨hal-00481190⟩