Classical capacity of the lossy bosonic channel: the exact solution
The classical capacity of the lossy bosonic channel is calculated exactly. It is shown that its Holevo information is not superadditive, and that a coherent-state encoding achieves capacity. The capacity of far-field, free-space optical communications is given as an example.
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| Veröffentlicht in: | Physical review letters 2004-01, Vol.92 (2), p.027902-027902, Article 027902 |
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| container_end_page | 027902 |
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| container_issue | 2 |
| container_start_page | 027902 |
| container_title | Physical review letters |
| container_volume | 92 |
| creator | Giovannetti, V Guha, S Lloyd, S Maccone, L Shapiro, J H Yuen, H P |
| description | The classical capacity of the lossy bosonic channel is calculated exactly. It is shown that its Holevo information is not superadditive, and that a coherent-state encoding achieves capacity. The capacity of far-field, free-space optical communications is given as an example. |
| doi_str_mv | 10.1103/physrevlett.92.027902 |
| format | Article |
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| ispartof | Physical review letters, 2004-01, Vol.92 (2), p.027902-027902, Article 027902 |
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| source | American Physical Society Journals |
| title | Classical capacity of the lossy bosonic channel: the exact solution |
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