SU(N)

SU(N) refers to the special unitary group of degree N, which is a mathematical concept in the field of group theory, a branch of abstract algebra. It consists of all N x N unitary matrices with a determinant of 1. These matrices represent transformations that preserve length and angles in complex N-dimensional space, important in quantum mechanics and particle physics. SU(N) plays a crucial role in the Standard Model of particle physics, describing the interactions of fundamental particles and the symmetries of the forces that govern them.