3D spinfoam quantum gravity: matter as a phase of the group field theory

  title={3D spinfoam quantum gravity: matter as a phase of the group field theory},
  author={W. Fairbairn and E. Livine},
  journal={Classical and Quantum Gravity},
  • W. Fairbairn, E. Livine
  • Published 2007
  • Physics
  • Classical and Quantum Gravity
  • An effective field theory for matter coupled to three-dimensional quantum gravity was recently derived in the context of spinfoam models (Freidel and Livine 2006 Phys. Rev. Lett. 96 221301 (Preprint hep-th/0512113)). In this paper, we show how this relates to group field theories and generalized matrix models. In the first part, we realize that the effective field theory can be recast as a matrix model where couplings between matrices of different sizes can occur. In a second part, we provide a… CONTINUE READING
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