$SU(N)\to SU(2)$ symmetry breaking in quantum antiferromagnets

A. K. Kolezhuk, T. L. Zavertanyi

We study a $SU(2)$-symmetric spin-$3/2$ system on a bipartite lattice close to the antiferromagnetic $SU(4)$-symmetric point, which can be described by the $C{P}^3$ model with…