Nonlocality and entanglement in a strange system

Hiesmayr, Beatrix C.

doi:10.1140/epjc/s10052-006-0199-x

Cited by 39 publications

(43 citation statements)

References 22 publications

(18 reference statements)

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“…the system is treated as a two state system analogously to spin-1 2 particles [3,4] and the two relevant bases-if CP violation is neglected-are the strangeness (flavor) basis and mass eigenstate basis. For convenience of the readers we provide a summary in the Appendix A.…”

Section: Kaon Phenomenology and The Mass-proportional Csl Modelmentioning

confidence: 99%

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Are Collapse Models Testable via Flavor Oscillations?

et al. 2013

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Collapse models predict the spontaneous collapse of the wave function, in order to avoid the emergence of macroscopic superpositions. In their mass-dependent formulation, they claim that the collapse of any system's wave function depends on its mass. Neutral K, D, B mesons are oscillating systems that are given by Nature as superposition of different mass eigenstates. Thus they are unique and interesting systems to look at, for analyzing the experimental implications of such models, so far in agreement with all known experiments. In this paper we derive-for the single mesons and bipartite entangled mesons-the effect of the mass-proportional CSL collapse model on the dynamics on neutral mesons, including the relativistic effects. We compare the theoretical prediction with experimental data from different accelerator facilities.

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Section: Kaon Phenomenology and The Mass-proportional Csl Modelmentioning

confidence: 99%

“…if there is no noise (γ = 0) the square bracket gives 1 and arrive at the standard oscillations formula 3 [9,29]. 3 In some of these works, inside the cosine, only the mass difference appears. This is the same result as ours, if one makes the approximation (good at the non-relativistic level) E…”

Section: Computation Of the Transition Probabilitymentioning

confidence: 99%

Are Collapse Models Testable via Flavor Oscillations?

et al. 2013

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“…Currently, more and more experiments in the realm of Particle Physics, i.e. for systems at a different energy scales, are exploring these fundamental issues [2][3][4][5][6][7][8][9][10]. These experiments presently enter precision levels where, for various reasons, new physics is expected.…”

Section: Introductionmentioning

confidence: 99%

“…This is possible because there exists two different measurement procedures, an active one, exerting the free will of the experimenter, and a passive one, with no control over the measurement basis nor on the time point. [2][3][4][5][6][7][8][9]), but they lack a direct experimental verification since both the observable as well as state space are limited. The first Bell test overcoming this insufficiency was found in Ref.…”

Section: Introductionmentioning

confidence: 99%

Can strong correlations be experimentally revealed forҠ-mesons?

Hiesmayr

2014

EPJ Web of Conferences

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Abstract. In 1964 the physicists John St. Bell working at CERN took the 1935-idea of Einstein-Podolsky-Rosen seriously and found that all theories based on local realism have to satisfy a certain inequality, nowadays dubbed Bell's inequality. Experiments with ordinary matter systems or light show violations of Bell's inequality favouring the quantum theory though a loophole free experiment has not yet been performed. This contribution presents an experimentally feasible Bell inequality for systems at higher energy scales, i.e. entangled neutral K-meson pairs that are typically produced in Φ-mesons decays or proton-antiproton annihilation processes. Strong requirements have to be overcome in order to achieve a conclusive tests, such a proposal was recently published. Surprisingly, this new Bell inequality reveals new features for weakly decaying particles, in particular, a strong sensitivity to the combined charge-conjugation-parity ( CP) symmetry. Herewith, a puzzling relation between a symmetry breaking for mesons and Bell's inequality -which is a necessary and sufficient condition for the security of quantum cryptography protocols-is established. This becomes the more important since CP symmetry is related to the cosmological question why the antimatter disappeared after the Big Bang.

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“…It's worth mentioning that -surprisingly -CP violation in this case turns out to be a key ingredient to make the inequality violated by Quantum Mechanics. This subject has been thoroughly discussed by B. Hiesmayr in her contribution [3].…”

Section: Introductionmentioning

confidence: 99%

Testing fundamental physical principles with entangled neutralKmesons

Domenico

2014

EPJ Web of Conferences

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Abstract. The neutral kaon doublet is one of the most intriguing systems in nature. Entangled pairs of neutral K mesons produced in φ-meson decays offer a unique possibility to perform important tests of fundamental discrete symmetries as well as of basic principles of quantum mechanics. This paper will focus on a novel method to perform direct T and CPT symmetry tests exploiting the Einstein-Podolsky-Rosen correlations of neutral kaon pairs produced at a φ-factory. The statistical significance of the test achievable with the KLOE-2 experiment at DAΦNE, the Frascati φ-factory, is also briefly discussed.

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Nonlocality and entanglement in a strange system

Cited by 39 publications

References 22 publications

Are Collapse Models Testable via Flavor Oscillations?

Are Collapse Models Testable via Flavor Oscillations?

Can strong correlations be experimentally revealed forҠ-mesons?

Testing fundamental physical principles with entangled neutralKmesons

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