Supergravity

1. Supergravity 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.
2. Supergravity is a gravity as described or predicted by a supersymmetric quantum field theory.

Theories of supergravity have developed out of attempts to construct a unified field theory that would describe all of the four basic forces. One of the essential features of a quantum field theory is its prediction of “force-carrier” particles that are exchanged between interacting particles of matter. It is in this context that the gravitational force has proved difficult to treat as a quantum field theory. General relativity, which relates the gravitational force to the curvature of space-time, provides a respectable theory of gravity on a larger scale. To be consistent with general relativity, gravity at the quantum level must be carried by a particle, called the graviton, with an intrinsic angular momentum (spin) of 2 units – in contrast to the other fundamental forces, whose carrier particles (e.g., the photon and the gluon) have a spin of 1.

Sources:

Corrosion Dictionary https://www.corrosionpedia.com/dictionary

Lexico Oxford English and Spanish Dictionary, Thesaurus, and Spanish to English Translator. www.lexico.com

Britannica https://www.britannica.com/science/