Charge conjugation from space-time inversion in QED: discrete and continuous groups
arXiv:1009.0774 · doi:10.1142/S0218271811019153
Abstract
We show that the CPT groups of QED emerge naturally from the PT and P (or T) subgroups of the Lorentz group. We also find relationships between these discrete groups and continuous groups, like the connected Lorentz and Poincaré groups and their universal coverings.
7 pages