dorsal/arxiv
View SchemaQuantum Whispers
| Authors | Lucien Hardy, Wim van Dam |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9805037 |
| URL | https://arxiv.org/abs/quant-ph/9805037 |
| DOI | 10.1103/PhysRevA.59.2635 |
| Journal | Phys.Rev. A59 (1999) 2635-2640 |
Abstract
It is shown that with the use of entanglement a specific two party communication task can be done with a systematically smaller expected error than any possible classical protocol could do. The example utilises the very tight correlation between separate spin measurements on a singlet state for small differences in the angles of these two measurements. An extension of this example to many parties arranged in a row with only local, one-to-one communication (whispering) is then considered. It is argued that in this scenario there exists no reliable classical protocol, whereas in the quantum case there does.
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"abstract": "It is shown that with the use of entanglement a specific two party\ncommunication task can be done with a systematically smaller expected error\nthan any possible classical protocol could do. The example utilises the very\ntight correlation between separate spin measurements on a singlet state for\nsmall differences in the angles of these two measurements. An extension of this\nexample to many parties arranged in a row with only local, one-to-one\ncommunication (whispering) is then considered. It is argued that in this\nscenario there exists no reliable classical protocol, whereas in the quantum\ncase there does.",
"arxiv_id": "quant-ph/9805037",
"authors": [
"Lucien Hardy",
"Wim van Dam"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.59.2635",
"journal_ref": "Phys.Rev. A59 (1999) 2635-2640",
"title": "Quantum Whispers",
"url": "https://arxiv.org/abs/quant-ph/9805037"
},
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