Journal
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Volume 54, Issue 2, Pages 689-698Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-014-2261-z
Keywords
Density operator; Quantum cryptography; Jensen-Shannon information divergence; Arithmetic-geometric information divergence; Quantum unified (r . s)-entropy
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Funding
- Beijing Municipal Education Commission Science and Technology Development Plan [KM201310005021]
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Both information divergence and distance are measures of closeness of two quantum states which are widely used in the theory of information processing and quantum cryptography. For example, the quantum relative entropy and trace distance are well known. Here we introduce a number of new quantum information divergence and distance measures into the literature and discuss their relations and properties. We also propose a method to analyze the properties and relations of various distance and pseudo-distance measures.
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