Spin-foam model for gravity coupled to massless scalar field

Abstract

A spin-foam model is derived from the canonical model of Loop Quantum Gravity coupled to a massless scalar field. We generalized to the full theory the scheme first proposed in the context of Loop Quantum Cosmology by Ashtekar, Campiglia and Henderson, later developed by Henderson, Rovelli, Vidotto and Wilson-Ewing.

arXiv comment35 pages, 6 figures

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Cited by in corpus (10)

• Effective Dynamics from Coherent State Path Integral of Full Loop Quantum Gravity
• Semiclassical Limit of New Path Integral Formulation from Reduced Phase Space Loop Quantum Gravity
• Emergent 4-dimensional linearized gravity from spin foam model
• Quantum gravity states, entanglement graphs and second-quantized tensor networks
• Loop Quantum Gravity on Dynamical Lattice and Improved Cosmological Effective Dynamics with Inflaton
• Spinfoams: Foundations
• Fermions in Loop Quantum Gravity and Resolution of Doubling Problem
• Toward matter dynamics in spin foam quantum gravity
• Homogeneous-isotropic sector of loop quantum gravity: new approach
• (2+1) Lorentzian quantum cosmology from spin-foams: opportunities and obstacles for semi-classicality