For 10 points, name this formulator of special and general relativity, as well as the equation E = mc squared.
With Élie Cartan, this scientist extended a more famous theory of his to allow modeling of spin-orbit coupling. Mobility and diffusivity appear in an equation he developed with Smoluchowski. The Gross-Pitaevski equation describes a state of matter named for this man and Satyendra Bose, and he posited the existence of hidden variables along with Podolsky and Rosen. His field equations describe gravity as a result of matter distorting spacetime. For 10 points, name this formulator of special and general relativity, as well as the equation E = mc squared.
With Élie Cartan, this scientist extended a more famous theory of his to allow modeling of spin-orbit coupling.
Albert {Einstein}