Generalized relative entropies and the capacity of classical-quantum channels
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چکیده
منابع مشابه
Generalized relative entropies and the capacity of classical-quantum channels
We provide lower and upper bounds on the information transmission capacity of one single use of a classical-quantum channel. The lower bound is expressed in terms of the Hoe ding capacity, that we de ne similarly to the Holevo capacity, but replacing the relative entropy with the Hoe ding distance. Similarly, our upper bound is in terms of a quantity obtained by replacing the relative entropy w...
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We analyze the quantum binary adder channel, i.e. the quantum generalization of the classical, and well–studied, binary adder channel: in this model qubits rather than classical bits are transmitted. This of course is as special case of the general theory of quantum multiple access channels, and we may apply the established formulas for the capacity region to it. However, the binary adder chann...
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ژورنال
عنوان ژورنال: Journal of Mathematical Physics
سال: 2009
ISSN: 0022-2488,1089-7658
DOI: 10.1063/1.3167288