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Self-energy and vertex radiative corrections in LQG |
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| Authors: | Claudio Perini Carlo Rovelli Simone Speziale |
| Affiliation: | 1. Centre de Physique Théorique de Luminy1, Case 907, F-13288 Marseille, France;2. Dipartimento di Matematica, Università degli Studi Roma Tre, I-00146 Roma, Italy;3. Perimeter Institute, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada |
| Abstract: | We consider the elementary radiative-correction terms in loop quantum gravity. These are a two-vertex “elementary bubble” and a five-vertex “ball”; they correspond to the one-loop self-energy and the one-loop vertex correction of ordinary quantum field theory. We compute their naive degree of (infrared) divergence. |
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