dorsal/arxiv
View SchemaDense coding with multipartite quantum states
| Authors | Dagmar Bruss, Giacomo Mauro D'Ariano, Maciej Lewenstein, Chiara Macchiavello, Aditi Sen De, Ujjwal Sen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0507146 |
| URL | https://arxiv.org/abs/quant-ph/0507146 |
| DOI | 10.1142/S0219749906001888 |
| Journal | Int. J. Quant. Inf. 4, 415-428 (2006) |
Abstract
We consider generalisations of the dense coding protocol with an arbitrary number of senders and either one or two receivers, sharing a multiparty quantum state, and using a noiseless channel. For the case of a single receiver, the capacity of such information transfer is found exactly. It is shown that the capacity is not enhanced by allowing the senders to perform joint operations. We provide a nontrivial upper bound on the capacity in the case of two receivers. We also give a classification of the set of all multiparty states in terms of their usefulness for dense coding. We provide examples for each of these classes, and discuss some of their properties.
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"abstract": "We consider generalisations of the dense coding protocol with an arbitrary\nnumber of senders and either one or two receivers, sharing a multiparty quantum\nstate, and using a noiseless channel. For the case of a single receiver, the\ncapacity of such information transfer is found exactly. It is shown that the\ncapacity is not enhanced by allowing the senders to perform joint operations.\nWe provide a nontrivial upper bound on the capacity in the case of two\nreceivers. We also give a classification of the set of all multiparty states in\nterms of their usefulness for dense coding. We provide examples for each of\nthese classes, and discuss some of their properties.",
"arxiv_id": "quant-ph/0507146",
"authors": [
"Dagmar Bruss",
"Giacomo Mauro D\u0027Ariano",
"Maciej Lewenstein",
"Chiara Macchiavello",
"Aditi Sen De",
"Ujjwal Sen"
],
"categories": [
"quant-ph"
],
"doi": "10.1142/S0219749906001888",
"journal_ref": "Int. J. Quant. Inf. 4, 415-428 (2006)",
"title": "Dense coding with multipartite quantum states",
"url": "https://arxiv.org/abs/quant-ph/0507146"
},
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