Functional renormalization of N scalars with O(N) invariance
High Energy Physics - Theory
2013-10-30 v2 High Energy Physics - Phenomenology
Abstract
We discuss general theories of N scalar fields with O(N) symmetry. In addition to the standard case of linearly realized symmetry there are also examples that carry nonlinear realizations, with the topology of a cylinder or a sphere . We write flow equations for the theory in the second order of the derivative expansion in the background field and discuss the properties of scaling solutions with vanishing potential.
Keywords
Cite
@article{arxiv.1306.3918,
title = {Functional renormalization of N scalars with O(N) invariance},
author = {R. Percacci and M. Safari},
journal= {arXiv preprint arXiv:1306.3918},
year = {2013}
}
Comments
32 pages; v.2: one reference added, small corrections, to appear in PRD