dorsal/arxiv
View SchemaSuperbroadcasting of mixed states
| Authors | Giacomo Mauro D'Ariano, Chiara Macchiavello, Paolo Perinotti |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506251 |
| URL | https://arxiv.org/abs/quant-ph/0506251 |
| DOI | 10.1103/PhysRevLett.95.060503 |
| Journal | Phys. Rev. Lett. 95, 060503 (2005) |
Abstract
We derive the optimal universal broadcasting for mixed states of qubits. We show that the nobroadcasting theorem cannot be generalized to more than a single input copy. Moreover, for four or more input copies it is even possible to purify the input states while broadcasting. We name such purifying broadcasting superbroadcasting.
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"abstract": "We derive the optimal universal broadcasting for mixed states of qubits. We\nshow that the nobroadcasting theorem cannot be generalized to more than a\nsingle input copy. Moreover, for four or more input copies it is even possible\nto purify the input states while broadcasting. We name such purifying\nbroadcasting superbroadcasting.",
"arxiv_id": "quant-ph/0506251",
"authors": [
"Giacomo Mauro D\u0027Ariano",
"Chiara Macchiavello",
"Paolo Perinotti"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevLett.95.060503",
"journal_ref": "Phys. Rev. Lett. 95, 060503 (2005)",
"title": "Superbroadcasting of mixed states",
"url": "https://arxiv.org/abs/quant-ph/0506251"
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