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A definition of the Ponzano-Regge quantum gravity model in terms of surfaces

Junichi Iwasaki
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Abstract

We show that the partition function of the Ponzano-Regge quantum gravity model can be written as a sum over surfaces in a $(2+1)$ dimensional space-time. We suggest a geometrical meaning, in terms of surfaces, for the (regulated) divergences that appear in the partition function.

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Junichi Iwasaki. 1995-06-08. A definition of the Ponzano-Regge quantum gravity model in terms of surfaces. https://doi.org/10.1063/1.531245

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