Bounds on the concavity of quantum entropy (Q2924886)
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scientific article; zbMATH DE number 6358480
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Bounds on the concavity of quantum entropy |
scientific article; zbMATH DE number 6358480 |
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Bounds on the concavity of quantum entropy (English)
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20 October 2014
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von Neumann entropy concavity
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quantum relative entropy
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Renyi divergencies
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Holevo value
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The new lower and upper bounds for the quantum entropy concavity are established and compared with recent results obtained by other methods. The extensions to bounds on the Holevo \(\chi\) value are considered. One of useful tools is application of usual and sandwiched quantum Renyi relative entropies.
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