String theory origin of constrained multiplets

DOI10.1007/JHEP09(2016)063zbMATH Open1390.83347arXiv1606.09245MaRDI QIDQ1639183

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Publication date: 12 June 2018

Published in: (Search for Journal in Brave)

Abstract: 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 $A_{m}u$, three complex scalars $ph{i}^i$ and four 4d fermions $lambd{a}^0$, $lambd{a}^i$. 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 $S$, $Y^i$ that satisfy $S^2=S{Y}^i=0$ and contain the worldvolume fermions $lambd{a}^0$ and $lambd{a}^i$; and four chiral multiplets $W_{a}lpha$, $H^i$ that satisfy $S{W}_{a}lpha=0$ and $$ and contain the vector $A_{m}u$ and the scalars $ph{i}^i$. We also discuss how placing an anti-D3-brane on top of intersecting O7-planes can lead to an orthogonal multiplet $Phi$ that satisfies $$, which is particularly interesting for inflationary cosmology.

Full work available at URL: https://arxiv.org/abs/1606.09245

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