Quasiprobability fluctuation theorem behind the spread of quantum information

Abstract Information spreads in time. For example, correlations dissipate when the correlated system locally couples to a third party, such as the environment. This simple but important fact forms the known quantum data-processing inequality. Here we theoretically uncover the quantum fluctuation the...

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Bibliographic Details
Main Authors: Kun Zhang, Jin Wang
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-024-01583-z