Partial dynamical symmetry in a fermion system

Abstract

The relevance of the partial dynamical symmetry concept for an interacting fermion system is demonstrated. Hamiltonians with partial SU(3) symmetry are presented in the framework of the symplectic shell-model of nuclei and shown to be closely related to the quadrupole-quadrupole interaction. Implications are discussed for the deformed light nucleus ${}^{20}$Ne.

Comments: Physical Review Letters (in press), 4 pages, figures included in manuscript