Supergravity

Supergravity is a theoretical framework in physics that extends Einstein’s theory of gravity by incorporating principles from quantum mechanics. It introduces a symmetry called supersymmetry, which relates particles that carry forces (bosons) to particles that make up matter (fermions). In supergravity, these relationships are unified in a way that also includes gravity, suggesting that gravity is connected to other fundamental forces at very high energies. While it’s a mathematical model aimed at understanding the universe's fundamental structure, supergravity remains unconfirmed by experiments but provides important insights into potential theories of everything.