dorsal/arxiv
View SchemaOptimized teleportation in Gaussian noisy channels
| Authors | Stefano Olivares, Matteo G. A. Paris, Andrea R. Rossi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0309097 |
| URL | https://arxiv.org/abs/quant-ph/0309097 |
| DOI | 10.1016/j.physleta.2003.10.015 |
| Journal | Phys. Lett. A Vol. 319, 32 (2003) |
Abstract
We address continuous variable quantum teleportation in Gaussian quantum noisy channels, either thermal or squeezed-thermal. We first study the propagation of twin-beam and evaluate a threshold for its separability. We find that the threshold for purely thermal channels is always larger than for squeezed-thermal ones. On the other hand, we show that squeezing the channel improves teleportation of squeezed states and, in particular, we find the class of squeezed states that are better teleported in a given noisy channel. Finally, we find regimes where optimized teleportation of squeezed states improves amplitude-modulated communication in comparison with direct transmission.
{
"annotation_id": "9990c420-a0c6-4edd-9e0c-4d2f5b5604cd",
"date_created": "2026-03-02T18:02:02.740000Z",
"date_modified": "2026-03-02T18:02:02.740000Z",
"file_hash": "5f2677464b3c340af768cf2b691408e5550430c0d60b9c67f0a11b7e8a9d18b6",
"private": false,
"record": {
"abstract": "We address continuous variable quantum teleportation in Gaussian quantum\nnoisy channels, either thermal or squeezed-thermal. We first study the\npropagation of twin-beam and evaluate a threshold for its separability. We find\nthat the threshold for purely thermal channels is always larger than for\nsqueezed-thermal ones. On the other hand, we show that squeezing the channel\nimproves teleportation of squeezed states and, in particular, we find the class\nof squeezed states that are better teleported in a given noisy channel.\nFinally, we find regimes where optimized teleportation of squeezed states\nimproves amplitude-modulated communication in comparison with direct\ntransmission.",
"arxiv_id": "quant-ph/0309097",
"authors": [
"Stefano Olivares",
"Matteo G. A. Paris",
"Andrea R. Rossi"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physleta.2003.10.015",
"journal_ref": "Phys. Lett. A Vol. 319, 32 (2003)",
"title": "Optimized teleportation in Gaussian noisy channels",
"url": "https://arxiv.org/abs/quant-ph/0309097"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "56696ecb-5c56-4683-b237-369ea2031818",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}