Charge Parity Time (CPT) from the lens of an experimental physicist

Abstract The domain of Charge Parity Time (CPT) symmetries has intrigued physicists for the better part of a century. Whilst the CPT theorem—a core principle asserting the combined invariance of charge conjugation, parity transformation and time reversal in quantum field theories—is foundational in modern theoretical physics, its implications are rooted deeply in the experiments that have confirmed or refuted our understanding. This paper delves into the world of CPT from an experimental physicist’s viewpoint.