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Superadditivity of quantum channel coding rate with finite blocklength quantum measurements
2013
2013 51st Annual Allerton Conference on Communication, Control, and Computing (Allerton)
We investigate superadditivity in the maximum achievable rate of reliable classical communication over a quantum channel. The maximum number of classical information bits extracted per use of the quantum channel strictly increases as the number of channel outputs jointly measured at the receiver increases. This phenomenon is called superadditivity. We provide an explanation of this phenomenon by comparing a quantum channel with a classical discrete memoryless channel (DMC) under concatenated
doi:10.1109/allerton.2013.6736608
dblp:conf/allerton/ChungZ13
fatcat:wuuml2kq6rdorldw42y35kbvxq