Self-dual soliton solutions in a Chern–Simons-CP(1) model with a nonstandard kinetic term

Abstract

A generalization of the Chern–Simons-CP(1) model is considered by introducing a nonstandard kinetic term. For a particular case, of this nonstandard kinetic term, we show that the model support self-dual Bogomol'nyi equations. The Bogomol'nyi–Prasad–Sommerfield (BPS) energy has a bound proportional to the sum of the magnetic flux and the CP(1) topological charge. The self-dual equations are solved analytically and verified numerically.