CPTsymmetrieën

CPTsymmetrieën refers to the combined symmetry of charge conjugation (C), parity transformation (P), and time reversal (T) in quantum field theory. The CPT theorem, a fundamental result in physics, states that all local, relativistic quantum field theories are invariant under the combined CPT transformation. This means that if a physical process is described by such a theory, it will behave identically under a simultaneous reversal of charge, spatial orientation, and the direction of time.

Charge conjugation (C) flips the sign of all charges in a system, effectively swapping particles with their antiparticles. Parity transformation (P) is a spatial inversion, reflecting the system through the origin. Time reversal (T) reverses the direction of time, making processes run backward. While individual C, P, and T symmetries can be violated by certain physical interactions, their combined CPT symmetry is considered to be an exact symmetry of nature. This has profound implications for our understanding of fundamental physics, including the properties of antimatter and the behavior of particles in extreme conditions. The CPT theorem is deeply rooted in the principles of causality and locality within quantum field theory.