Nonlocality and entanglement in a strange system

Autor(en)
Beatrix Hiesmayr
Abstrakt

We show that the relation between nonlocality and entanglement is subtler than one naively expects. In order to do this we consider the neutral kaon system - which is oscillating in time (particle-anti-particle mixing) and decaying - and describe it as an open quantum system. We consider a Bell-CHSH inequality and show a novel violation for non-maximally entangled states. Considering the change of purity and entanglement in time we find that, despite the fact that only two degrees of freedom at a certain time can be measured, the neutral kaon system does not behave like a bipartite qubit system. © Springer-Verlag Berlin Heidelberg 2007.

Organisation(en)
Teilchenphysik
Journal
European Physical Journal C
Band
50
Seiten
73-79
Anzahl der Seiten
7
ISSN
1434-6044
DOI
https://doi.org/10.1140/epjc/s10052-006-0199-x
Publikationsdatum
2007
Peer-reviewed
Ja
ÖFOS 2012
103036 Theoretische Physik
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/nonlocality-and-entanglement-in-a-strange-system(0c359ec8-8176-47f2-9aab-31b236126d71).html