Statistical discrete geometry

Seramika Ariwahjoedi (1, 2, 3) , Valerio Astuti , Jusak Sali Kosasih (1) , Carlo Rovelli (3, 2) , Freddy Permana Zen (1)

1 ITB - Institut Teknologi Bandung
2 CPT - E4 Gravité quantique
3 CPT - Centre de Physique Théorique - UMR 7332

Following our earlier work, we construct statistical discrete geometry by applying statistical mechanics to discrete (Regge) gravity. We propose a coarse-graining method for discrete geometry under the assumptions of atomism and background independence. To maintain these assumptions, restrictions are given to the theory by introducing cut-offs, both in ultraviolet and infrared regime. Having a well-defined statistical picture of discrete Regge geometry, we take the infinite degrees of freedom (large n) limit. We argue that the correct limit consistent with the restrictions and the background independence concept is not the continuum limit of statistical mechanics, but the thermodynamical limit.

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

Seramika Ariwahjoedi, Valerio Astuti, Jusak Sali Kosasih, Carlo Rovelli, Freddy Permana Zen. Statistical discrete geometry. 2018. ⟨hal-01461395⟩