In theoretical physics, supergravity (supergravity theory; SUGRA for short) 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 non-gravitational supersymmetric theories, such as the Minimal Supersymmetric Standard...
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http://en.wikipedia.org/wiki/Supergravity
a type of quantum field theory of elementary subatomic particles and their interactions that is based on the particle symmetry known as supersymmetry ...
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http://www.britannica.com/eb/a-z/s/187
A class of point-particle theories, developed in the 1970s, which attempted to unify general relativity and supersymmetry. It employed 11 dimensions – the conventional four of ordinary spacetime plus seven compactified dimensions, effectively rolled up into a higher-dimensional sphere. Althoug...
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http://www.daviddarling.info/encyclopedia/S/supergravity.html
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