In this paper, we obtain stable and metastable soliton solutions of a coupledsystem of two real scalar fields with five five discrete points of vacua. Thesesolutions have definite topological charges and rest energies and showclassical dynamical stability. From a quantum point of view, however, theV-type solutions are expected to be unstable and decay to D-type solutions. Theinduced decay of a V-type soliton into two D-type ones is calculatednumerically, and shown to be chiral, in the sense that the decay products donot respect left-right symmetry.
展开▼