Matter-coupled de Sitter Supergravity

Understand

De Sitter supergravity describes interaction of supergravity with general chiral and vector multiplets as well as one nilpotent chiral multiplet.

• The extra universal positive term in the potential due to the nilpotent multiplet, corresponding to the anti-D3 brane in string theory, supports de Sitter vacua in these supergravity models.
• In the flat space limit these supergravity models include the Volkov-Akulov model with a non-linearly realized supersymmetry.
• The rules for constructing pure de Sitter supergravity action are generalized here in presence of other matter multiplets.