dorsal/arxiv
View SchemaNonsequential positive-operator-valued measurements on entangled mixed states do not always violate a Bell inequality
| Authors | Jonathan Barrett |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0107045 |
| URL | https://arxiv.org/abs/quant-ph/0107045 |
| DOI | 10.1103/PhysRevA.65.042302 |
| Journal | Phys. Rev. A, 65, 042302 (2002) |
Abstract
We present a local-hidden-variable model for positive-operator-valued measurements (an LHVPOV model) on a class of entangled generalized Werner states, thus demonstrating that such measurements do not always violate a Bell-type inequality. We also show that, in general, if the state $\rho'$ can be obtained from $\rho$ with certainty by local quantum operations without classical communication then an LHVPOV model for the state $\rho$ implies the existence of such a model for $\rho'$.
{
"annotation_id": "5422bae1-eb1c-4031-a306-72debb5eb3b9",
"date_created": "2026-03-02T18:01:45.341000Z",
"date_modified": "2026-03-02T18:01:45.341000Z",
"file_hash": "482c69eb085d80708a8c3977119421a2794f174a0b79504abd231afd2e75e0a6",
"private": false,
"record": {
"abstract": "We present a local-hidden-variable model for positive-operator-valued\nmeasurements (an LHVPOV model) on a class of entangled generalized Werner\nstates, thus demonstrating that such measurements do not always violate a\nBell-type inequality. We also show that, in general, if the state $\\rho\u0027$ can\nbe obtained from $\\rho$ with certainty by local quantum operations without\nclassical communication then an LHVPOV model for the state $\\rho$ implies the\nexistence of such a model for $\\rho\u0027$.",
"arxiv_id": "quant-ph/0107045",
"authors": [
"Jonathan Barrett"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.042302",
"journal_ref": "Phys. Rev. A, 65, 042302 (2002)",
"title": "Nonsequential positive-operator-valued measurements on entangled mixed states do not always violate a Bell inequality",
"url": "https://arxiv.org/abs/quant-ph/0107045"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "4bcde13f-706b-4301-8eeb-2ea6f5ac9646",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}