Europhysics Letters (EPL)
Experiments of the EPR Type Involving CP -Violation Do not Allow Faster-than-Light Communication between Distant Observers
G. C. Ghirardi, Renata Grassi, A. Rimini, T. Weber
Abstract
The proof that faster-than-light communication is not permitted by quantum mechanics derived some years ago by three of us is extended to cover the case of measurements which do not fit within the standard scheme based on sets of orthogonal projections. A detailed discussion of a recent proposal of superluminal transmission making resort to a CP -violating interaction is presented. It is shown that such a proposal cannot work.