$SU(1,1|N)$ superconformal mechanics with fermionic gauge symmetry

Abstract

We study superpaticle models with fermionic gauge symmetry on the coset spaces of the $SU(1,1|N)$ supergroup. We first construct $SU(1,1|N)$ supersymmetric extension of a particle on $Ad{S}_2$ possessing the $\kappa$-symmetry. Including angular degrees of freedom and extending this model to a superparticle on the $Ad{S}_2\times {\mathbb{CP}}^{N-1}$ background with two-form flux, one breaks the $\kappa$-symmetry down to a fermionic gauge symmetry with one parameter. A link of the background field configuration to the near horizon black hole geometries is discussed.

V2: 17 pages, presentation improved, the version to appear in JHEP