3 papers
gr-qc2026
Emergent scalar field dynamics in a cosmological spacetime from GFT quantum gravity
Roukaya Dekhil, Federico Greco, Stefano Liberati +1
We derive an effective scalar field theory for matter in group field theory condensate cosmology, starting from the fundamental quantum-gravity dynamics in a fully relational frame…
quant-ph2026
Finite path integrals on stochastic branched structures
Roukaya Dekhil, Clifford Ellgen, Bruno Klajn
In this paper, we present a statistical model of spacetime trajectories based on a finite collection of paths organized into a branched manifold. For each configuration of the bran…
gr-qc2025
A state sum for four-dimensional Lorentzian quantum geometry in terms of edge vectors
Roukaya Dekhil, Matteo Laudonio, Daniele Oriti
We present the construction of a new state sum model for Lorentzian quantum gravity based on the description of quantum simplicial geometry in terms of edge vectors. Quantum s…