Information flow in non-unitary quantum cellular automata

The information flow in a quantum system is a fundamental feature of its dynamics. An important class of dynamics are quantum cellular automata (QCA), systems with discrete updates invariant in time and space, for which an index theory has been proposed for the quantification of the net flow of quan...

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Bibliographic Details
Main Author: Elisabeth Wagner, Ramil Nigmatullin, Alexei Gilchrist, Gavin K. Brennen
Format: Article
Language:English
Published: SciPost 2024-01-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.16.1.014