|
| related topics |
| {time, decoherence, evolution} |
| {entanglement, phys, rev} |
| {bell, inequality, local} |
| {particle, mechanics, theory} |
| {state, states, entangled} |
| {time, wave, function} |
| {photon, photons, single} |
| {alice, bob, state} |
| {states, state, optimal} |
| {operator, operators, space} |
| {energy, gaussian, time} |
| {cos, sin, state} |
|
Nonlocality and entanglement in a strange system
Beatrix C. Hiesmayr
abstract: 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--antiparticle 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.
- oai_identifier:
- oai:arXiv.org:quant-ph/0607210
- categories:
- quant-ph
- comments:
- 7 pages, 2 figures, extended version
- doi:
- 10.1140/epjc/s10052-006-0199-x
- arxiv_id:
- quant-ph/0607210
- journal_ref:
- European Physical Journal C, Vol. 50, 73-79 (2007)
- created:
- 2006-07-28
- updated:
- 2007-02-08
Full article ▸
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