Dirac equation in curved spacetime
= Dirac equation in curved spacetime
{wiki=Dirac_equation_in_curved_spacetime}
The Dirac equation in curved spacetime is an extension of the Dirac equation, which originally describes the behavior of spin-1/2 particles (like electrons) in flat spacetime, to a general curved spacetime described by general relativity. The original Dirac equation incorporates quantum mechanics and special relativity but does not take into account the effects of gravity.