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Euclidean three-point function in loop and perturbative gravity

We compute the leading order of the three-point function in loop quantum gravity, using the vertex expansion of the Euclidean version of the new spin foam dynamics, in the region of gamma<1. We find results consistent with Regge calculus in the limit gamma->0 and j->infinity. We also compute the tree-level three-point function of perturbative quantum general relativity in position space, and discuss the possibility of directly comparing the two results.

preprint2011arXivOpen access
Carlo RovelliMingyi Zhang
gr-qc
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Open access2 authors1 topic
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Carlo RovelliMingyi Zhang

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