English

Functional Renormalisation Group analysis of a Tensorial Group Field Theory on $\mathbb{R}^3$

High Energy Physics - Theory 2015-12-09 v1 General Relativity and Quantum Cosmology Mathematical Physics math.MP

Abstract

We study a model of Tensorial Group Field Theory (TGFT) on R3\mathbb{R}^3 from the point of view of the Functional Renormalisation Group. This is the first attempt to apply a renormalisation procedure to a TGFT model defined over a non-compact group manifold. IR divergences (with respect to the metric on R\mathbb{R}) coming from the non-compactness of the group are regularised via compactification, and a thermodynamic limit is then taken. We identify then IR and UV fixed points of the RG flow and find strong hints of a phase transition of the TGFT system from a symmetric to a broken or condensate phase in the IR.

Keywords

Cite

@article{arxiv.1508.01855,
  title  = {Functional Renormalisation Group analysis of a Tensorial Group Field Theory on $\mathbb{R}^3$},
  author = {Joseph Ben Geloun and Riccardo Martini and Daniele Oriti},
  journal= {arXiv preprint arXiv:1508.01855},
  year   = {2015}
}

Comments

7 pages, 2 Figures