dorsal/arxiv
View SchemaAddendum to "Sufficient conditions for three-particle entanglement and their tests in recent experiments"
| Authors | Geza Toth, Otfried Guehne, Michael Seevinck, Jos Uffink |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0505100 |
| URL | https://arxiv.org/abs/quant-ph/0505100 |
| DOI | 10.1103/PhysRevA.72.014101 |
| Journal | Physical Review A 72, 014101 (2005) |
Abstract
A recent paper [M. Seevinck and J. Uffink, Phys. Rev. A 65, 012107 (2002)] presented a bound for the three-qubit Mermin inequality such that the violation of this bound indicates genuine three-qubit entanglement. We show that this bound can be improved for a specific choice of observables. In particular, if spin observables corresponding to orthogonal directions are measured at the qubits (e.g., X and Y spin coordinates) then the bound is the same as the bound for states with a local hidden variable model. As a consequence, it can straightforwardly be shown that in the experiment described by J.-W. Pan et al. [Nature 403, 515 (2000)] genuine three-qubit entanglement was detected.
{
"annotation_id": "e98d5911-f9c9-45a6-8516-e6f7672818e2",
"date_created": "2026-03-02T18:02:17.207000Z",
"date_modified": "2026-03-02T18:02:17.207000Z",
"file_hash": "742167d4d726fa8b571ea8dc3add82ca55b9bf8ef6c5107e576f458e185f975f",
"private": false,
"record": {
"abstract": "A recent paper [M. Seevinck and J. Uffink, Phys. Rev. A 65, 012107 (2002)]\npresented a bound for the three-qubit Mermin inequality such that the violation\nof this bound indicates genuine three-qubit entanglement. We show that this\nbound can be improved for a specific choice of observables. In particular, if\nspin observables corresponding to orthogonal directions are measured at the\nqubits (e.g., X and Y spin coordinates) then the bound is the same as the bound\nfor states with a local hidden variable model. As a consequence, it can\nstraightforwardly be shown that in the experiment described by J.-W. Pan et al.\n[Nature 403, 515 (2000)] genuine three-qubit entanglement was detected.",
"arxiv_id": "quant-ph/0505100",
"authors": [
"Geza Toth",
"Otfried Guehne",
"Michael Seevinck",
"Jos Uffink"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.014101",
"journal_ref": "Physical Review A 72, 014101 (2005)",
"title": "Addendum to \"Sufficient conditions for three-particle entanglement and their tests in recent experiments\"",
"url": "https://arxiv.org/abs/quant-ph/0505100"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "35fb12f4-fcfa-473c-b855-e895585fa8ad",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}