Self-Dualities and Renormalization Dependence of the Phase Diagram in 3d $O(N)$ Vector Models

Giacomo Sberveglieri, Marco Serone, Gabriele Spada

In the classically unbroken phase, 3d $O(N)$ symmetric ${\varphi }^4$ vector models admit two equivalent descriptions connected by a strong-weak duality closely related to the one found by…