Loop-quantum-gravity vertex amplitude.

  title={Loop-quantum-gravity vertex amplitude.},
  author={Jonathan Engle and Roberto Pereira and Carlo Rovelli},
  journal={Physical review letters},
  volume={99 16},
Spin foam models are hoped to provide the dynamics of loop-quantum gravity. However, the most popular of these, the Barrett-Crane model, does not have the good boundary state space and there are indications that it fails to yield good low-energy n-point functions. We present an alternative dynamics that can be derived as a quantization of a Regge discretization of Euclidean general relativity, where second class constraints are imposed weakly. Its state space matches the SO(3) loop gravity one… CONTINUE READING
Highly Cited
This paper has 50 citations. REVIEW CITATIONS
Recent Discussions
This paper has been referenced on Twitter 1 time over the past 90 days. VIEW TWEETS

From This Paper

Topics from this paper.
40 Citations
0 References
Similar Papers


Publications citing this paper.

fewer than 50 Citations

Citations per Year
Semantic Scholar estimates that this publication has 50 citations based on the available data.

See our FAQ for additional information.

Similar Papers

Loading similar papers…