dorsal/arxiv
View SchemaComment on "Bell's Theorem without Inequalities and without Alignments"
| Authors | Luca Marinatto |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0409129 |
| URL | https://arxiv.org/abs/quant-ph/0409129 |
| DOI | 10.1103/PhysRevLett.93.128901 |
| Journal | Phys. Rev. Lett. 93, 128901 (2004) |
Abstract
In this Comment we show that Cabello's proof of Bell's theorem without inequalities [Phys. Rev. Lett. 91, 230403 (2003)] does not exhibit two of the three "remarkable properties" which the proof is claimed to possess. More precisely it is our purpose to show that property (c) of Cabello's proof, stating that ``local observables can be measured by means of tests on individual qubits" is definitely false since it has been obtained by a wrong use of the basic rules of the quantum formalism, while property (b), stating that ``distant local setups do not need to be aligned since the require perfect correlations are achieved for any local rotation of the setups", is also wrong due to the failure of validity of property (c).
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"abstract": "In this Comment we show that Cabello\u0027s proof of Bell\u0027s theorem without\ninequalities [Phys. Rev. Lett. 91, 230403 (2003)] does not exhibit two of the\nthree \"remarkable properties\" which the proof is claimed to possess. More\nprecisely it is our purpose to show that property (c) of Cabello\u0027s proof,\nstating that ``local observables can be measured by means of tests on\nindividual qubits\" is definitely false since it has been obtained by a wrong\nuse of the basic rules of the quantum formalism, while property (b), stating\nthat ``distant local setups do not need to be aligned since the require perfect\ncorrelations are achieved for any local rotation of the setups\", is also wrong\ndue to the failure of validity of property (c).",
"arxiv_id": "quant-ph/0409129",
"authors": [
"Luca Marinatto"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevLett.93.128901",
"journal_ref": "Phys. Rev. Lett. 93, 128901 (2004)",
"title": "Comment on \"Bell\u0027s Theorem without Inequalities and without Alignments\"",
"url": "https://arxiv.org/abs/quant-ph/0409129"
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