Modern theory of gravitation that combines supersymmetry and general relativity
In theoretical physics , supergravity (supergravity theory ; SUGRA for short) is a modern field theory that combines the principles of supersymmetry and general relativity ; this is in contrast to non-gravitational supersymmetric theories such as the Minimal Supersymmetric Standard Model . Supergravity is the gauge theory of local supersymmetry. Since the supersymmetry (SUSY) generators form together with the Poincaré algebra a superalgebra , called the super-Poincaré algebra , supersymmetry as a gauge theory makes gravity arise in a natural way.[ 1]