Supergravity theories merge the notions of supersymmetry and gravitation. Supersymmetry requires that every bosonic particle (integer spin) has a fermionic counterpart (half-integer spin) and vice versa. Spin-0 particles (scalars) and spin-1 particles...

In theoretical physics, supergravity (supergravity theory) is a field theory that combines the principles of supersymmetry and general relativity. Together, these imply that, in supergravity, the supersymmetry is a local symmetry (in contrast to...