dorsal/arxiv
View SchemaEntanglement-enhanced classical capacity of two-qubit quantum channels with memory: the exact solution
| Authors | D. Daems |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0610165 |
| URL | https://arxiv.org/abs/quant-ph/0610165 |
| DOI | 10.1103/PhysRevA.76.012310 |
| Journal | Phys. Rev. A 76, 012310 (2007) |
Abstract
The maximal amount of information which is reliably transmitted over two uses of general Pauli channels with memory is proven to be achieved by maximally entangled states beyond some memory threshold. In particular, this proves a conjecture on the depolarizing channel by Macchiavello and Palma [Phys. Rev. A {\bf 65}, 050301(R) (2002)]. Below the memory threshold, for arbitrary Pauli channels, the two-use classical capacity is only achieved by a particular type of product states.
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"abstract": "The maximal amount of information which is reliably transmitted over two uses\nof general Pauli channels with memory is proven to be achieved by maximally\nentangled states beyond some memory threshold. In particular, this proves a\nconjecture on the depolarizing channel by Macchiavello and Palma [Phys. Rev. A\n{\\bf 65}, 050301(R) (2002)]. Below the memory threshold, for arbitrary Pauli\nchannels, the two-use classical capacity is only achieved by a particular type\nof product states.",
"arxiv_id": "quant-ph/0610165",
"authors": [
"D. Daems"
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"doi": "10.1103/PhysRevA.76.012310",
"journal_ref": "Phys. Rev. A 76, 012310 (2007)",
"title": "Entanglement-enhanced classical capacity of two-qubit quantum channels with memory: the exact solution",
"url": "https://arxiv.org/abs/quant-ph/0610165"
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