期刊
PHYSICS LETTERS A
卷 299, 期 5-6, 页码 469-475出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0375-9601(02)00735-1
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We show that for the tensor product of two depolarizing channels, the classical capacity is additive. The key observation is a majorization relation for the eigenvalues of output states. (C) 2002 Elsevier Science B.V All rights reserved.
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