The Dynamical Nonlocality of Neutral Kaons and the Kaonic Quantum Eraser

TL;DR

This paper explores the unique quantum properties of neutral kaons, including Bell inequality violations and quantum eraser phenomena, highlighting their differences from ordinary matter and light systems in high energy physics.

Contribution

It introduces the concept of dynamical nonlocality in neutral kaons, analyzes Bell inequalities specific to this system, and reviews their enhanced quantum eraser capabilities.

Findings

Neutral kaons can violate Bell inequalities even when non-maximally entangled.

The system exhibits dynamical nonlocality distinct from traditional quantum systems.

Kaonic quantum eraser offers more possibilities than standard quantum systems.

Abstract

Testing quantum foundations for systems in high energy physics gets currently more and more attention e.g. witnessed for entangled neutral K-mesons by the approved programme of the KLOE collaboration at the accelerator facility DAPHNE (Frascati, Italy). We focus on this quantum system in high energy physics and discuss two topics, Bell inequalities and the kaonic quantum eraser, and show how the neutral kaon system differs from systems of ordinary matter and light. In detail, we show a relation of the imbalance of matter and antimatter to the violation of a Bell inequality and discuss another Bell inequality which is maximally violated for a non-maximally entangled state though neutral kaons can be considered as two state systems. We compare in general this system in high energy physics with bipartite qudits. Last but not least we review the quantum marking and eraser procedure and explain why neutral kaons offer more eraser possibilities than usual quantum systems.