The Dirac and Klein-Gordon equations provide a full relativistic description for particles with spin ½ and 0, respectively. A calculation now shows how to extend this description to particles, such as nuclei, with spin greater than ½.
Phys. Rev. Focus21, 17 (2008) – Published May 21, 2008
Electrons can act like light waves in many ways, but according to recent experiments, their wave-like effects don’t always correspond with light. The unexpected behavior occurs because electrons feel each other’s presence, while photons do not.