Father Time II:. a Physical Basis Behind Feynman's Idea of (anti)particles Moving Backward in Time, and AN Extension of the CPT Theorem to Include Nonlocal Gauge Fields
It was demonstrated in a recent paper (Mod. Phys. Lett. A13, 1265 (1998); hep-th/9902020) that the existence of a nonthermodynamic arrow of time at the atomic level is a fundamental requirement for conservation of energy in matter-radiation interaction. Since the universe consists of only — energy and massive matter — we argue that as a consequence of this earlier result, particles and antiparticles must necessarily move in opposite directions in time. Our result further indicates that the CPT theorem can be extended to cover nonlocal gauge fields.