Author

Xiao-Hui Wang

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Preprint Aug 2026

Negative quasiprobability trajectories for Bell-diagonal states under local decoherence

The fluctuation theorem (FT) relates microscopic trajectory distributions to macroscopic averages. Using quasiprobability trajectories, this framework has recently been extended to quantum information dynamics. Despite sharing the form of conventional thermodynamic FTs, information FTs involve quasiprobabilities whose...

Qingtao Yu, Kun Zhang, Yang-Yang Chen et al. · 1 citation

Preprint Sep 2026

Anomaly fluctuation theorem for quantum coherence dynamics

Quantum coherence is a central resource in quantum information science, yet general frameworks and constraints governing its dynamics remain limited. Although quantum coherence lacks a general monotonicity law, we establish an exact integral fluctuation theorem (FT) for coherence dynamics, formulated in terms of Kirkwo...

Kun Zhang, Hai-Long Shi, Xiao-Hui Wang et al. · 0 citations