large-n

The large charge approach allows to describe special sectors of strongly-coupled systems. When another controlling parameter is present, it is still useful because it allows to unveil interesting mathematical structures and access previously unexplored parts of the spectrum

In this note we discuss the phase space of the O(2N) vector model in the presence of a quadratic and a quartic interaction by writing …

We discuss the O(2N) vector model in three dimensions. While this model flows to the Wilson-Fisher fixed point when fine tuned, working …

We study the O(2N) model at criticality in three dimensions in the double scaling limit of large N and large charge. We show that the …

I will discuss the IR fixed point of the O(N) vector model in 3 dimensions (Wilson-Fisher point) in the framework of the large charge …

We apply the large-charge expansion to O(N) vector models starting from first principles, focusing on the Wilson-Fisher point in three …

We apply the large-charge expansion to O(N) vector models starting from first principles. We focus on the Wilson–Fisher point in three …