Extended Supersymmetry and BPS solutions in baby Skyrme models
Apr 2, 2013
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Abstract: (Springer)
We continue the investigation of supersymmetric extensions of baby Skyrme models in d = 2 + 1 dimensions. In a first step, we show that the CP(1) form of the baby Skyrme model allows for the same N = 1 SUSY extension as its O(3) formulation. Then we construct the N = 1 SUSY extension of the gauged baby Skyrme model, i.e., the baby Skyrme model coupled to Maxwell electrodynamics. In a next step, we investigate the issue of N = 2 SUSY extensions of baby Skyrme models. We find that all gauged and ungauged submodels of the baby Skyrme model which support BPS soliton solutions allow for an N = 2 extension such that the BPS solutions are one-half BPS states (i.e., annihilated by one-half of the SUSY charges). In the course of our investigation, we also derive the general BPS equations for completely general N = 2 supersymmetric field theories of (both gauged and ungauged) chiral superfields, and apply them to the gauged nonlinear sigma model as a further, concrete example.Note:
- 32 pages, Latex file
- Supersymmetry
- Skyrme model
- BPS solutions
- solution: BPS
- supersymmetry: 1
- supersymmetry: 2
- supersymmetry: charge
- soliton: BPS
- sigma model: nonlinear
- superfield: chiral
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