Under such processes, the authors show that it is indeed possible to establish a reversible framework for entanglement manipulation, thus identifying a setting in which a unique entropy of ...

Quantum systems may defy classical time irreversibility, revealing bidirectional entropy flow and prompting a reevaluation of time's fundamental nature.

IT is widely believed that all irreversible mechanical processes involve an increase of entropy, and that ... processes only in so far as they are reversible in time 1. This means that a ...