Complex linear multiplets and local supersymmetry breaking

Abstract

We study supersymmetry breaking from a complex linear superfield coupled to 4D N=1 supergravity. The theory has two classically decoupled vacua, one supersymmetric and one with broken and intrinsically non-linear supersymmetry. Depending on the values of the parameters the scalar potential can lead to no-scale Minkwoski or a stable de Sitter or anti-de Sitter vacuum. We also provide a dual description of the system in terms of a nilpotent chiral superfield and a standard chiral coupled to supergravity.

(Super)universal attractors and the de Sitter vacua in string landscape

“…Although this is not the approach of this work, one should note that dual descriptions with scalar degrees of freedom of models with constrained superfields can be provided[87]. Alternatively, the validity of constrained superfields can be extended by integrating out heavy modes without neglecting the derivative terms starting from a linearly realized SUSY, thus obtaining nilpotency constraints on superfields in scalar terms[88].…”