dorsal/arxiv
View SchemaPurification and correlated measurements of bipartite mixed states
| Authors | Jan Bouda, Vladimir Buzek |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0112015 |
| URL | https://arxiv.org/abs/quant-ph/0112015 |
| DOI | 10.1103/PhysRevA.65.034304 |
Abstract
We prove that all purifications of a non-factorable state (i.e., the state which cannot be expressed in a form $\rho_{AB}=\rho_A\otimes\rho_B$) are entangled. We also show that for any bipartite state there exists a pair of measurements which are correlated on this state if and only if the state is non-factorable.
{
"annotation_id": "ed4ac1f8-af1b-474e-ae1c-933ad42cb9ba",
"date_created": "2026-03-02T18:01:48.616000Z",
"date_modified": "2026-03-02T18:01:48.616000Z",
"file_hash": "7ff93ed8ec2a7056a6b01d2f53fa0c294528844445b39271ecbe354fdc46a9cf",
"private": false,
"record": {
"abstract": "We prove that all purifications of a non-factorable state (i.e., the state\nwhich cannot be expressed in a form $\\rho_{AB}=\\rho_A\\otimes\\rho_B$) are\nentangled. We also show that for any bipartite state there exists a pair of\nmeasurements which are correlated on this state if and only if the state is\nnon-factorable.",
"arxiv_id": "quant-ph/0112015",
"authors": [
"Jan Bouda",
"Vladimir Buzek"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.034304",
"title": "Purification and correlated measurements of bipartite mixed states",
"url": "https://arxiv.org/abs/quant-ph/0112015"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "94469055-8ab1-469b-b5ec-7f95bb7c43be",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}