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Exponential Relative Entropy Decay Along Quantum Markov Semigroups

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arxiv 2505.07549 v2 pith:SYHSPTM7 submitted 2025-05-12 math.OA math-phmath.MPquant-ph

Exponential Relative Entropy Decay Along Quantum Markov Semigroups

classification math.OA math-phmath.MPquant-ph
keywords markovquantumalgebrasalongdecayentropyexponentialinequality
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We establish the equivalence between exponential decay of the relative entropy along a quantum Markov semigroup and the modified logarithmic Sobolev inequality for general von Neumann algebras. We also extend an intertwining criterion for the modified logarithmic Sobolev inequality to GNS-symmetric quantum Markov semigroups on infinite-dimensional von Neumann algebras.

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    Proves integer Rényi QNEC by establishing log-convexity of Kosaki L^n norms under null-translation semigroups for σ-finite von Neumann algebras with half-sided modular inclusions, assuming only finite sandwiched Rényi...