Constructive Tensor Field Theory: The $T^4_3$ Model
Abstract
We build constructively the simplest tensor field theory which requires some renormalization, namely the rank three tensor theory with quartic interactions and propagator inverse of the Laplacian on . This superrenormalizable tensor field theory has a power counting almost similar to ordinary . Our construction uses the multiscale loop vertex expansion (MLVE) recently introduced in the context of an analogous vector model. However to prove analyticity and Borel summability of this model requires new estimates on the intermediate field integration, which is now of matrix rather than of scalar type.
Keywords
Cite
@article{arxiv.1412.5091,
title = {Constructive Tensor Field Theory: The $T^4_3$ Model},
author = {Thibault Delepouve and Vincent Rivasseau},
journal= {arXiv preprint arXiv:1412.5091},
year = {2016}
}
Comments
24 pages, 5 figures. Substantially improved version. Version v1 is correct but treats a model which is simplified at the level of the two point function. This version treats the full model, without any simplification