%0 Journal Article %1 Carfora199212jsymbols %A Carfora, Mauro %A Martellini, Maurizio %A Marzuoli, Annalisa %D 1992 %J Physics Letters B %K groups %N 3-4 %P 229--233 %R 10.1016/0370-2693(93)90253-e %T 12j-symbols and four-dimensional quantum gravity %U http://dx.doi.org/10.1016/0370-2693(93)90253-e %V 299 %X We propose a model which represents a four-dimensional version of Ponzano and Regge's three-dimensional euclidean quantum gravity. In particular we show that the exponential of the euclidean Einstein-Regge action for a \$4d\$-discretized block is given, in the semiclassical limit, by a gaussian integral of a suitable \$12j\$-symbol. Possible developments of this result are discussed.

@article{Carfora199212jsymbols, abstract = {{We propose a model which represents a four-dimensional version of Ponzano and Regge's three-dimensional euclidean quantum gravity. In particular we show that the exponential of the euclidean Einstein-Regge action for a \$4d\$-discretized block is given, in the semiclassical limit, by a gaussian integral of a suitable \$12j\$-symbol. Possible developments of this result are discussed.}}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Carfora, Mauro and Martellini, Maurizio and Marzuoli, Annalisa}, biburl = {https://www.bibsonomy.org/bibtex/219ccf0ffff00a100a29d8979920ed1f1/cmcneile}, citeulike-article-id = {14093300}, citeulike-linkout-0 = {http://arxiv.org/abs/hep-th/9212018}, citeulike-linkout-1 = {http://arxiv.org/pdf/hep-th/9212018}, citeulike-linkout-2 = {http://dx.doi.org/10.1016/0370-2693(93)90253-e}, day = 2, doi = {10.1016/0370-2693(93)90253-e}, eprint = {hep-th/9212018}, interhash = {a50d82eb9f1f8cd172962b2d7afe5d3b}, intrahash = {19ccf0ffff00a100a29d8979920ed1f1}, issn = {03702693}, journal = {Physics Letters B}, keywords = {groups}, month = dec, number = {3-4}, pages = {229--233}, posted-at = {2016-07-11 15:14:28}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{12j-symbols and four-dimensional quantum gravity}}, url = {http://dx.doi.org/10.1016/0370-2693(93)90253-e}, volume = 299, year = 1992 }