dorsal/arxiv
View SchemaComment on "Quantum nonlocality for a three-particle nonmaximally entangled state without inequalities"
| Authors | Jose L. Cereceda |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0312046 |
| URL | https://arxiv.org/abs/quant-ph/0312046 |
Abstract
In a recent Brief Report, Zheng [S-B. Zheng, PRA 66, 014103 (2002)] has given a proof of nonlocality without using inequalities for three spin-1/2 particles in the nonmaximally entangled state |psi> = cos\theta |+++> + i sin\theta |-->. Here we show that Zheng's proof is not correct. Indeed it is the case that, for the experiment considered by Zheng, the only state that admits a nonlocality proof without inequalities is the maximally entangled state.
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"date_created": "2026-03-02T18:02:03.428000Z",
"date_modified": "2026-03-02T18:02:03.428000Z",
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"abstract": "In a recent Brief Report, Zheng [S-B. Zheng, PRA 66, 014103 (2002)] has given\na proof of nonlocality without using inequalities for three spin-1/2 particles\nin the nonmaximally entangled state |psi\u003e = cos\\theta |+++\u003e + i sin\\theta |--\u003e.\nHere we show that Zheng\u0027s proof is not correct. Indeed it is the case that, for\nthe experiment considered by Zheng, the only state that admits a nonlocality\nproof without inequalities is the maximally entangled state.",
"arxiv_id": "quant-ph/0312046",
"authors": [
"Jose L. Cereceda"
],
"categories": [
"quant-ph"
],
"title": "Comment on \"Quantum nonlocality for a three-particle nonmaximally entangled state without inequalities\"",
"url": "https://arxiv.org/abs/quant-ph/0312046"
},
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"source": {
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"variant": "snapshot-2026-03-01",
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