Continuum limit of two-dimensional multiflavor scalar gauge theories

We address the interplay between local and global symmetries by analyzing the continuum limit of two-dimensional multicomponent scalar lattice gauge theories, endowed by non-Abelian local and global invariance. These theories are asymptotically free. By exploiting Monte Carlo simulations and finite-size scaling techniques, we provide numerical results concerning the universal behaviorof such models in the critical regime. Our results support the conjecture that two-dimensional mul-tiflavor scalar models have the same continuum limit as the sigma-models associated with symmetricspaces that have the same global symmetry