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arXiv · 1207.5156

Divergences and Orientation in Spinfoams

Marios Christodoulou·Miklos Långvik·Aldo Riello·Christian Röken·Carlo Rovelli
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Abstract

We suggest that large radiative corrections appearing in the spinfoam framework might be tied to the implicit sum over orientations. Specifically, we show that in a suitably simplified context the characteristic "spike" divergence of the Ponzano-Regge model disappears when restricting the theory to just one of the two orientations appearing in the asymptotic limit of the vertex amplitude.

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Marios Christodoulou, Miklos Långvik, Aldo Riello, Christian Röken, Carlo Rovelli. 2012-07-21. Divergences and Orientation in Spinfoams. https://doi.org/10.1088/0264-9381%2F30%2F5%2F055009

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