dorsal/arxiv
View SchemaLocal Conversion of Greenberger-Horne-Zeilinger States to Approximate W States
| Authors | P. Walther, K. J. Resch, A. Zeilinger |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506190 |
| URL | https://arxiv.org/abs/quant-ph/0506190 |
| DOI | 10.1103/PhysRevLett.94.240501 |
| Journal | Phys. Rev. Lett. 94, 240501 (2005) |
Abstract
Genuine 3-qubit entanglement comes in two different inconvertible types represented by the Greenberger-Horne-Zeilinger (GHZ) state and the W state. We describe a specific method based on local positive operator valued measures and classical communication that can convert the ideal N-qubit GHZ state to a state arbitrarily close to the ideal N-qubit W state. We then experimentally implement this scheme in the 3-qubit case and characterize the input and the final state using 3-photon quantum state tomography.
{
"annotation_id": "133d9cac-a350-4b18-910f-fd8c0ae4c8f0",
"date_created": "2026-03-02T18:02:17.266000Z",
"date_modified": "2026-03-02T18:02:17.266000Z",
"file_hash": "d6de15f3c1eef0d525730edecc20f11c6f2c66aff2d883daf0d13bb16e08c8d6",
"private": false,
"record": {
"abstract": "Genuine 3-qubit entanglement comes in two different inconvertible types\nrepresented by the Greenberger-Horne-Zeilinger (GHZ) state and the W state. We\ndescribe a specific method based on local positive operator valued measures and\nclassical communication that can convert the ideal N-qubit GHZ state to a state\narbitrarily close to the ideal N-qubit W state. We then experimentally\nimplement this scheme in the 3-qubit case and characterize the input and the\nfinal state using 3-photon quantum state tomography.",
"arxiv_id": "quant-ph/0506190",
"authors": [
"P. Walther",
"K. J. Resch",
"A. Zeilinger"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.94.240501",
"journal_ref": "Phys. Rev. Lett. 94, 240501 (2005)",
"title": "Local Conversion of Greenberger-Horne-Zeilinger States to Approximate W States",
"url": "https://arxiv.org/abs/quant-ph/0506190"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "130c8bad-ea2e-4b37-a592-3ae118a11828",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}