The Polonyi model uses a canonical Kähler potential and a superpotential linear in one chiral superfield to obtain spontaneous supersymmetry breaking.
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Supergravity is a theoretical framework in physics that combines the principles of supersymmetry (SUSY) and general relativity. It is a type of gauge theory that extends the standard theories of gravity by incorporating additional symmetries that relate bosons (force-carrying particles) and fermions (matter particles).