Quantum operations with indefinite time direction

Common knowledge tells us that time flows from the past to the future, but this is not the case for microscopic theories of physics which are neutral with respect to the arrow of time. The authors develop a mathematical framework where certain agents could probe physical processes both forwards and...

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Bibliographic Details
Main Authors: Giulio Chiribella, Zixuan Liu
Format: Article
Language:English
Published: Nature Portfolio 2022-07-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-022-00967-3