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arXiv 0905.3772hep-th
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群论场论重整化-3D情况:发散的幂次计数

Group field theory renormalization - the 3d case: power counting of divergences

Laurent Freidel, Razvan Gurau, Daniele Oriti

摘要:

我们首先系统地研究了群场论重整化,重点是三维量子引力的布拉托夫模型。我们定义了一个算法,用于构建的二维三角形的边界特征的三维气泡,发散的位置,一个任意的三维GFT费曼图。然后,我们确定了一类特殊的图,一个完整的收缩过程是可能的,并证明,对于这些,一个完整的功率计数。这些结果代表了重要的进展,了解起源的连续性和流形样外观的量子时空在低能量下,其拓扑结构,在GFT框架。

英文摘要:

We take the first steps in a systematic study of Group Field Theory renormalization, focusing on the Boulatov model for 3D quantum gravity. We define an algorithm for constructing the 2D triangulations that characterize the boundary of the 3D bubbles, where divergences are located, of an arbitrary 3D GFT Feynman diagram. We then identify a special class of graphs for which a complete contraction procedure is possible, and prove, for these, a complete power counting. These results represent important progress towards understanding the origin of the continuum and manifold-like appearance of quantum spacetime at low energies, and of its topology, in a GFT framework.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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