On the Maxwell supergravity and flat limit in 2+1 dimensions

Understand

The construction of the three-dimensional Chern-Simons supergravity theory invariant under the minimal Maxwell superalgebra is presented.

• We obtain a supergravity action without cosmological constant term characterized by three coupling constants.
• We also show that the Maxwell supergravity presented here appears as a vanishing cosmological constant limit of a minimal AdS-Lorentz supergravity.
• The flat limit is applied at the level of the superalgebra, Chern-Simons action, supersymmetry transformation laws and field equations.