An EPR experiment testing the non-separability of the wave function

Apostolakis, A.; Aslanides, E.; Backenstoss, G.; Bargassa, P.; Behnke, O.; Benelli, A.; Bertín, V.; Blanc, F.; Bloch, P.; Carlson, P.; Carroll, M.; Cawley, E.; Chardin, G.; Chertok, M.; Cody, Ann Marie; Déjardin, M.; Derré, J.; Ealet, A.; Eleftheriadis, C.; Ferreira‐Marques, R.; Fetscher, W.; Fidecaro, M.; Filipčić, A.; Francis, D.; Fry, J. R.; Gabathuler, E.; Gamet, R.; Gerber, H.J.; Go, A.; Guyot, C.; Haselden, A.; Hayman, P.; Henry‐Couannier, F.; Hollander, R.W.; Hubert, E.; Jon‐And, K.; Kettle, P.R.; Kochowski, C.; Kokkas, P.; Kreuger, R.; Gac, R. Le; Leimgruber, F.; Mandić, I.; Manthos, N.; Marel, G.; Mikuž, M.; Miller, J.; Montanet, F.; Müller, A.; Nakada, T.; Pagels, B.; Papadopoulos, I.; Pavlopoulos, P.; Policarpo, A.; Polivka, G.; Rickenbach, R.; Roberts, B. L.; Ruf, T.; Schäfer, M.; Schaller, L.A.; Schietinger, T.; Schopper, A.; Schune, Ph.; Tauscher, L.; Thibault, C.; Touchard, F.; Touramanis, C.; Eijk, C.W.E. van; Vlachos, S.; Weber, Peter M.; Wigger, O.; Wolter, M. W.; Yéche, C.; Zavrtanik, D.

doi:10.1016/s0370-2693(97)01545-1

Cited by 85 publications

(134 citation statements)

References 15 publications

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“…The next system we explored was the K 0K 0 system, where data was available from the CPLEAR experiment at CERN [186]. It was precisely the time, when a young enthusiastic graduate student, with name Beatrix Hiesmayr, approached me searching for a Diploma Thesis.…”

Section: Entanglement In Particle Physics a Decoherence Of Entangmentioning

confidence: 99%

Bell’s Universe: A Personal Recollection

Bertlmann

2016

Quantum [Un]Speakables II

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My collaboration and friendship with John Bell is recollected. I will explain his outstanding contributions in particle physics, in accelerator physics, and his joint work with Mary Bell. Mary's work in accelerator physics is also summarized. I recall our quantum debates, mention some personal reminiscences, and give my personal view on Bell's fundamental work on quantum theory, in particular, on the concept of contextuality and nonlocality of quantum physics. Finally, I describe the huge influence Bell had on my own work, in particular on entanglement and Bell inequalities in particle physics and their experimental verification, and on mathematical physics, where some geometric aspects of the quantum states are illustrated.

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Section: Entanglement In Particle Physics a Decoherence Of Entangmentioning

confidence: 99%

Bell’s Universe: A Personal Recollection

Bertlmann

2016

Quantum [Un]Speakables II

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“…However this is an expected conclusion taking into account that falsification of ζ = 1 means simply a falsification of the spontaneous factorization hypothesis (SFH). Indeed SFH was already falsified with gamma ray pairs from e − − e + annihilations [12], with atomic photon pairs [13] and recently with kaons pairs produced in p−p annihilations [14]. On the other hand it is possible to reproduce within the local realistic approach all non paradoxical predictions of QM, anti-correlations in strangeness and CP (or beauty and mass) included, which are absent in SFH; thus SFH violation is also predicted by any reasonable approach based on LR.…”

Section: Introductionmentioning

confidence: 99%

On a possible EPR experiment with $B^{0}_{d}\overline{B^{0}_{d}}$ pairs

Pompili¹,

Selleri

2000

Eur. Phys. J. C

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A very general local realistic theory of single B 0 d mesons and of correlated B 0 d B 0 d pairs is formulated. If these pairs are produced in the Υ(4S) decay, the local realistic asymmetry for observing pairs with like and unlike flavour at different proper times remarkably differs from the quantum mechanical prediction. Asymmetric B-factories provide a powerful tool for the study of the EPR problem since the relative detection experiments are shown to be capable of a time-dependent measurement precise enough to discriminate between local realism and quantum theory.

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“…Fitting the decoherence parameter λ by comparing the asymmetry (99) with the experimental data [35] (see Fig.2) we find, when averaging over both configurations, the following bounds on λ (100) to the CPLEAR data [35], given by the crosses. The horizontal line indicates the Furry-Schrödinger's hypothesis [1,4], as explained in Sect.…”

Section: Methodsmentioning

confidence: 93%

“…Now we compare our model with the results of the CPLEAR experiment [35] at CERN where K 0K 0 pairs are produced in the pp collider: pp −→ K 0K 0 . These pairs are predominantly in an antisymmetric state with quantum numbers J P C = 1 −− and the strangeness of the kaons is detected via strong interactions in surrounding absorbers (made of copper and carbon).…”

Section: Methodsmentioning

confidence: 99%

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Entanglement, Bell Inequalities and Decoherence in Particle Physics

Bertlmann¹

Quantum Coherence

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We demonstrate the relevance of entanglement, Bell inequalities and decoherence in particle physics. In particular, we study in detail the features of the "strange" K 0K 0 system as an example of entangled meson-antimeson systems. The analogies and differences to entangled spin-1 2 or photon systems are worked out, the effects of a unitary time evolution of the meson system is demonstrated explicitly. After an introduction we present several types of Bell inequalities and show a remarkable connection to CP violation. We investigate the stability of entangled quantum systems pursuing the question of how possible decoherence might arise due to the interaction of the system with its "environment". The decoherence is strikingly connected to the entanglement loss of common entanglement measures. Finally, some outlook of the field is presented.

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An EPR experiment testing the non-separability of the wave function

Cited by 85 publications

References 15 publications

Bell’s Universe: A Personal Recollection

Bell’s Universe: A Personal Recollection

On a possible EPR experiment with $B^{0}_{d}\overline{B^{0}_{d}}$ pairs

Entanglement, Bell Inequalities and Decoherence in Particle Physics

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