Concavity of the auxiliary function appearing in quantum reliability function an classical-quantum channels

Jun Ichi Fujii; Kenjiro Yanagi; Ritsuo Nakamoto

arxiv: cs/0501057 · v1 · pith:YNPXJDLBnew · submitted 2005-01-22 · 💻 cs.IT · math.IT

Concavity of the auxiliary function appearing in quantum reliability function an classical-quantum channels

Jun Ichi Fujii , Ritsuo Nakamoto , Kenjiro Yanagi This is my paper

classification 💻 cs.IT math.IT

keywords functionquantumauxiliaryconcavityreliabilityappearingappearsbound

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Concavity of the auxiliary function which appears in the random coding exponent as the lower bound of the quantum reliability function for general quantum states is proven for s between 0 and 1.

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Concavity of the auxiliary function appearing in quantum reliability function an classical-quantum channels

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