dorsal/arxiv
View SchemaExploiting entanglement in communication channels with correlated noise
| Authors | Jonathan Ball, Andrzej Dragan, Konrad Banaszek |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0309148 |
| URL | https://arxiv.org/abs/quant-ph/0309148 |
| DOI | 10.1103/PhysRevA.69.042324 |
| Journal | Physical Review A Vol. 69, 042324 (2004) |
Abstract
We develop a model for a noisy communication channel in which the noise affecting consecutive transmissions is correlated. This model is motivated by fluctuating birefringence of fiber optic links. We analyze the role of entanglement of the input states in optimizing the classical capacity of such a channel. Assuming a general form of an ensemble for two consecutive transmissions, we derive tight bounds on the classical channel capacity depending on whether the input states used for communication are separable or entangled across different temporal slots. This result demonstrates that by an appropriate choice, the channel capacity may be notably enhanced by exploiting entanglement.
{
"annotation_id": "525048f5-f405-4591-9235-d25b2e40552c",
"date_created": "2026-03-02T18:02:03.637000Z",
"date_modified": "2026-03-02T18:02:03.637000Z",
"file_hash": "f8c2ea879f2c2d1c04e9a1a08335568b33d4abdc402895ee58a6e7aafef3c6b1",
"private": false,
"record": {
"abstract": "We develop a model for a noisy communication channel in which the noise\naffecting consecutive transmissions is correlated. This model is motivated by\nfluctuating birefringence of fiber optic links. We analyze the role of\nentanglement of the input states in optimizing the classical capacity of such a\nchannel. Assuming a general form of an ensemble for two consecutive\ntransmissions, we derive tight bounds on the classical channel capacity\ndepending on whether the input states used for communication are separable or\nentangled across different temporal slots. This result demonstrates that by an\nappropriate choice, the channel capacity may be notably enhanced by exploiting\nentanglement.",
"arxiv_id": "quant-ph/0309148",
"authors": [
"Jonathan Ball",
"Andrzej Dragan",
"Konrad Banaszek"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.69.042324",
"journal_ref": "Physical Review A Vol. 69, 042324 (2004)",
"title": "Exploiting entanglement in communication channels with correlated noise",
"url": "https://arxiv.org/abs/quant-ph/0309148"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "f1a66f6a-2856-4275-a71e-1e437bb82dd9",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}