dorsal/arxiv
View SchemaDistributed quantum dense coding
| Authors | Dagmar Bruss, Giacomo Mauro D'Ariano, Maciej Lewenstein, Chiara Macchiavello, Aditi Sen De, Ujjwal Sen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407037 |
| URL | https://arxiv.org/abs/quant-ph/0407037 |
| DOI | 10.1103/PhysRevLett.93.210501 |
| Journal | Phys. Rev. Lett. 93, 210501 (2004) |
Abstract
We introduce the notion of distributed quantum dense coding, i.e. the generalization of quantum dense coding to more than one sender and more than one receiver. We show that global operations (as compared to local operations) of the senders do not increase the information transfer capacity, in the case of a single receiver. For the case of two receivers, using local operations and classical communication, a non-trivial upper bound for the capacity is derived. We propose a general classification scheme of quantum states according to their usefulness for dense coding. In the bipartite case (for any dimensions), bound entanglement is not useful for this task.
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"abstract": "We introduce the notion of distributed quantum dense coding, i.e. the\ngeneralization of quantum dense coding to more than one sender and more than\none receiver. We show that global operations (as compared to local operations)\nof the senders do not increase the information transfer capacity, in the case\nof a single receiver. For the case of two receivers, using local operations and\nclassical communication, a non-trivial upper bound for the capacity is derived.\nWe propose a general classification scheme of quantum states according to their\nusefulness for dense coding. In the bipartite case (for any dimensions), bound\nentanglement is not useful for this task.",
"arxiv_id": "quant-ph/0407037",
"authors": [
"Dagmar Bruss",
"Giacomo Mauro D\u0027Ariano",
"Maciej Lewenstein",
"Chiara Macchiavello",
"Aditi Sen De",
"Ujjwal Sen"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.93.210501",
"journal_ref": "Phys. Rev. Lett. 93, 210501 (2004)",
"title": "Distributed quantum dense coding",
"url": "https://arxiv.org/abs/quant-ph/0407037"
},
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