Local-Potential Approximation in Tensor-Invariant Theories

par Johannes Thürigen (Universität Münster)

mercredi 8 juin 2022, 14:00 → 15:00 Europe/Paris

https://greenlight.virtualdata.cloud.math.cnrs.fr/b/fab-49u-gkt

The local-potential approximation is a powerful tool to determine the RG flow in local field theories, O(N) theories being the paradigmatic example where full analytic solutions can be obtained. For fields interacting non-locally such as in tensor-invariant theories, a local potential is strictly speaking not at hand. In this talk we show under what conditions the local-potential technique is still applicable and that it can lead again to Wilson-Fisher type fixed points but also beyond.