Eur. Phys. J. C (2012) 72: 1907
https://doi.org/10.1140/epjc/s10052-012-1907-3

Regular Article - Theoretical Physics

Exact theorems concerning CP and CPT violations in C=−1 entangled state of pseudoscalar neutral mesons

Department of Physics, Fudan University, Shanghai, 200433, China

^* e-mail: yushi@fudan.edu.cn

Received: 21 January 2012
Published online: 1 March 2012

Abstract

Neutral pseudoscalar mesons in an entangled or Einstein–Podolsky–Rosen state are routinely produced in ϕ and B factories. Based on the peculiar properties of an entangled state, we present some general exact theorems about parameters characterizing CP and CPT violations, by using various asymmetries defined for the correlated decays of the two entangled mesons, which are rigorously calculated.