Superconformal Sigma Models in Three Dimensions

Details Superconformal Sigma Models in Three Dimensions Superconformal Sigma Models in Three Dimensions

2010-02-24

arxiv.org/abs/1002.4411v1

Physics

High Energy Physics

High Energy Physics - Theory

39 pages

Scientific paper

We construct superconformal gauged sigma models with extended rigid supersymmetry in three dimensions. Those with N>4 have necessarily flat targets, but the models with N \leq 4 admit non-flat targets, which are cones with appropriate Sasakian base manifolds. Superconformal symmetry also requires that the three dimensional spacetimes admit conformal Killing spinors which we examine in detail. We present explicit results for the gauged superconformal theories for N=1,2. In particular, we gauge a suitable subgroup of the isometry group of the cone in a superconformal way. We finally show how these sigma models can be obtained from Poincare supergravity. This connection is shown to necessarily involve a subset of the auxiliary fields of supergravity for N \geq 2.

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