Self-energy and vertex radiative corrections in LQG

Details Self-energy and vertex radiative corrections in LQG Self-energy and vertex radiative corrections in LQG

2008-10-09

arxiv.org/abs/0810.1714v2

Phys.Lett.B682:78-84,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, 3 figures

Scientific paper

10.1016/j.physletb.2009.10.076

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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