Thursday, December 20, 2012

1107.3361 (Nematollah Riazi et al.)

Families of stable and metastable solitons in coupled system of scalar

Nematollah Riazi, Marzieh Peyravi
In this paper, we obtain stable and metastable soliton solutions of a coupled system of two real scalar fields with five five discrete points of vacua. These solutions have definite topological charges and rest energies and show classical dynamical stability. From a quantum point of view, however, the V-type solutions are expected to be unstable and decay to D-type solutions. The induced decay of a V-type soliton into two D-type ones is calculated numerically, and shown to be chiral, in the sense that the decay products do not respect left-right symmetry.
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