If realized in Nature, supersymmetry has to be spontaneously broken at some energy scale above the TeV. When spontaneously broken, it can become non-linearly realized. In this talk I will analyze the properties of models with spontaneously broken and non-linearly realized, global and local supersymmetry in four dimensions. A systematic procedure is going to be given for constructing generic effective theories with any desired spectrum content and applications to supergravity and de Sitter uplifts will be discussed.
Niccolò Cribiori (TU Wien): Linear versus Non-linear Supersymmetry
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