English

A new look at loop quantum gravity

General Relativity and Quantum Cosmology 2011-05-25 v4 High Energy Physics - Theory

Abstract

I describe a possible perspective on the current state of loop quantum gravity, at the light of the developments of the last years. I point out that a theory is now available, having a well-defined background-independent kinematics and a dynamics allowing transition amplitudes to be computed explicitly in different regimes. I underline the fact that the dynamics can be given in terms of a simple vertex function, largely determined by locality, diffeomorphism invariance and local Lorentz invariance. I emphasize the importance of approximations. I list open problems.

Keywords

Cite

@article{arxiv.1004.1780,
  title  = {A new look at loop quantum gravity},
  author = {Carlo Rovelli},
  journal= {arXiv preprint arXiv:1004.1780},
  year   = {2011}
}

Comments

15 pages, 5 figures

R2 v1 2026-06-21T15:08:58.243Z