Quantum capacity is properly defined without encodings
نویسندگان
چکیده
منابع مشابه
qu an t - ph / 9 71 10 32 v 2 1 3 M ay 1 99 8 The quantum capacity is properly defined without encodings
We show that no source encoding is needed in the definition of the capacity of a quantum channel for carrying quantum information. This allows us to use the coherent information maximized over all sources and and block sizes, but not encodings, to bound the quantum capacity. We perform an explicit calculation of this maximum coherent information for the quantum erasure channel and apply the bou...
متن کاملua nt - p h / 97 11 03 2 v 2 1 3 M ay 1 99 8 The quantum capacity is properly defined without encodings
We show that no source encoding is needed in the definition of the capacity of a quantum channel for carrying quantum information. This allows us to use the coherent information maximized over all sources and and block sizes, but not encodings, to bound the quantum capacity. We perform an explicit calculation of this maximum coherent information for the quantum erasure channel and apply the bou...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 1998
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.58.3496