dorsal/arxiv
View SchemaBell's inequality without alternative settings
| Authors | Adan Cabello |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0210081 |
| URL | https://arxiv.org/abs/quant-ph/0210081 |
| DOI | 10.1016/S0375-9601(03)00722-9 |
| Journal | Phys. Lett. A 313 (2003) 1 |
Abstract
A suitable generalized measurement described by a 4-element positive operator-valued measure (POVM) on each particle of a two-qubit system in the singlet state is, from the point of view of Einstein, Podolsky, and Rosen's (EPR's) criterion of elements of reality, equivalent to a random selection between two alternative projective measurements. It is shown that an EPR-experiment with a fixed POVM on each particle provides a violation of Bell's inequality without requiring local observers to choose between the alternatives. This approach could be useful for designing a loophole-free test of Bell's inequality.
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"abstract": "A suitable generalized measurement described by a 4-element positive\noperator-valued measure (POVM) on each particle of a two-qubit system in the\nsinglet state is, from the point of view of Einstein, Podolsky, and Rosen\u0027s\n(EPR\u0027s) criterion of elements of reality, equivalent to a random selection\nbetween two alternative projective measurements. It is shown that an\nEPR-experiment with a fixed POVM on each particle provides a violation of\nBell\u0027s inequality without requiring local observers to choose between the\nalternatives. This approach could be useful for designing a loophole-free test\nof Bell\u0027s inequality.",
"arxiv_id": "quant-ph/0210081",
"authors": [
"Adan Cabello"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0375-9601(03)00722-9",
"journal_ref": "Phys. Lett. A 313 (2003) 1",
"title": "Bell\u0027s inequality without alternative settings",
"url": "https://arxiv.org/abs/quant-ph/0210081"
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