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arxiv: quant-ph/0406215 · v1 · submitted 2004-06-29 · 🪐 quant-ph

On Quantum Capacity and its Bound

classification 🪐 quant-ph
keywords quantumcapacityboundchannelclassical-quantum-classicaldetaildiscussedentropy
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The quantum capacity of a pure quantum channel and that of classical-quantum-classical channel are discussed in detail based on the fully quantum mechanical mutual entropy. It is proved that the quantum capacity generalizes the so-called Holevo bound.

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