Simple Stringy Dynamical SUSY Breaking

Understand

We present simple string models which dynamically break supersymmetry without non-Abelian gauge dynamics.

• The Fayet model, the Polonyi model, and the O'Raifeartaigh model each arise from D-branes at a specific type of singularity.
• D-brane instanton effects generate the requisite exponentially small scale of supersymmetry breaking.