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Classical capacities of compound quantum channels | IEEE Conference Publication | IEEE Xplore

Classical capacities of compound quantum channels


Abstract:

We determine the capacity of compound classicalquantum channels. The capacity result for compound channels demonstrates, as in the classical setting, the existence of rel...Show More

Abstract:

We determine the capacity of compound classicalquantum channels. The capacity result for compound channels demonstrates, as in the classical setting, the existence of reliable universal classical-quantum codes in scenarios where the only a priori information about the channel used for the transmission of information is that it belongs to a given set of memoryless classical-quantum channels. Our approach is based on the universal classical approximation of the quantum relative entropy which in turn relies on the universal hypothesis testing results.
Date of Conference: 05-09 May 2008
Date Added to IEEE Xplore: 25 July 2008
ISBN Information:
Conference Location: Porto, Portugal

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