- String theory origin of constrained multiplets
- The Journal of High Energy Physics
- Volume | Issue number
- 2016 | 9
- Article number
- Number of pages
- Document type
- Faculty of Science (FNWI)
- Institute for Theoretical Physics Amsterdam (ITFA)
We study the non-linearly realized spontaneously broken supersymmetry of the (anti-)D3-brane action in type IIB string theory. The worldvolume fields are one vector Aμ, three complex scalars ϕi and four 4d fermions λ0, λi. These transform, in addition to the more familiar N=4 linear supersymmetry, also under 16 spontaneously broken, non-linearly realized supersymmetries. We argue that the worldvolume fields can be packaged into the following constrained 4d non-linear N=1 multiplets: four chiral multiplets S, Yi that satisfy S2 =SYi =0 and contain the worldvolume fermions λ0 and λi; and four chiral multiplets Wα, Hi that satisfy SWα=SD¯α⋅H¯ı¯=0 and contain the vector Aμ and the scalars ϕi. We also discuss how placing an anti-D3-brane on top of intersecting O7-planes can lead to an orthogonal multiplet Φ that satisfies S(Φ−Φ¯)=0, which is particularly interesting for inflationary cosmology.
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