Bimodule KMS Symmetric Quantum Markov Semigroups and Gradient Flows

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Hauptverfasser: Jiang, Chunlan, Wan, Jincheng, Wu, Jinsong
Format: Preprint
Veröffentlicht: 2025
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author Jiang, Chunlan
Wan, Jincheng
Wu, Jinsong
author_facet Jiang, Chunlan
Wan, Jincheng
Wu, Jinsong
contents The bimodule KMS symmetry of a bimodule quantum Markov semigroup extends the classical KMS symmetry of a quantum Markov semigroup. Compared with (bimodule) GNS symmetry, the (bimodule) KMS symmetry retains significantly more of the underlying noncommutativity. In this paper, we study bimodule KMS symmetric quantum Markov semigroups and introduce directional matrices for such semigroups, which reduce to diagonal matrices in the GNS symmetric setting. Using these directional matrices, we establish a corresponding gradient-flow structure. As a consequence, we obtain both a modified logarithmic Sobolev inequality and a Talagrand inequality for bimodule KMS symmetric quantum Markov semigroups.
format Preprint
id arxiv_https___arxiv_org_abs_2511_04881
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bimodule KMS Symmetric Quantum Markov Semigroups and Gradient Flows
Jiang, Chunlan
Wan, Jincheng
Wu, Jinsong
Operator Algebras
Functional Analysis
46L57, 46L37, 46L67, 81S22
The bimodule KMS symmetry of a bimodule quantum Markov semigroup extends the classical KMS symmetry of a quantum Markov semigroup. Compared with (bimodule) GNS symmetry, the (bimodule) KMS symmetry retains significantly more of the underlying noncommutativity. In this paper, we study bimodule KMS symmetric quantum Markov semigroups and introduce directional matrices for such semigroups, which reduce to diagonal matrices in the GNS symmetric setting. Using these directional matrices, we establish a corresponding gradient-flow structure. As a consequence, we obtain both a modified logarithmic Sobolev inequality and a Talagrand inequality for bimodule KMS symmetric quantum Markov semigroups.
title Bimodule KMS Symmetric Quantum Markov Semigroups and Gradient Flows
topic Operator Algebras
Functional Analysis
46L57, 46L37, 46L67, 81S22
url https://arxiv.org/abs/2511.04881