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Relative entropy in quantum information theory

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arxiv quant-ph/0004045 v1 pith:COIDST27 submitted 2000-04-10 quant-ph

classification quant-ph
keywords quantumentropyrelativeinformationanalyzeapplicationclassicalcompression
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We review the properties of the quantum relative entropy function and discuss its application to problems of classical and quantum information transfer and to quantum data compression. We then outline further uses of relative entropy to quantify quantum entanglement and analyze its manipulation.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Black hole thermodynamics at null infinity. Part 2: Open systems, Markovian dynamics and work extraction from non-rotating black holes

    hep-th 2026-01 conditional novelty 6.0 of 10

    Null-infinity black hole thermodynamics is recast as Markovian open-system thermodynamics, with chemical-potential terms identified as extractable work and used to formulate generalized grand-potential laws for Schwar...

  2. Black hole thermodynamics at null infinity. Part 1: Dual Generalized Second Law

    hep-th 2026-01 conditional novelty 5.0 of 10

    At future null infinity, the generalized second law for a Schwarzschild black hole becomes the monotonic decrease of a free energy, or grand potential, constructed from the Bondi mass and angular-mode chemical potentials.

  3. Monotonicity of the Relative Entropy and the Two-sided Bogoliubov Inequality in von Neumann Algebras

    math.OA 2025-01 conditional novelty 5.0 of 10

    The two-sided Bogoliubov inequality for relative free energies, previously proved for quantum-mechanical systems, is extended to arbitrary von Neumann algebras, alongside new Hilbert-space-level monotonicity inequalit...

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