Quantum chimera states

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TitreQuantum chimera states
Type de publicationJournal Article
Year of Publication2016
AuteursViennot D, Aubourg L
JournalPHYSICS LETTERS A
Volume380
Pagination678-683
Date PublishedFEB 15
Type of ArticleArticle
ISSN0375-9601
Mots-clésentanglement, Non-hermitian quantum systems, quantum chaos, spin chains
Résumé

We study a theoretical model of closed quasi-hermitian chain of spins which exhibits quantum analogues of chimera states, i.e. long life classical states for which a part of an oscillator chain presents an ordered dynamics whereas another part presents a disordered dynamics. For the quantum analogue, the chimera behaviour deals with the entanglement between the spins of the chain. We discuss the entanglement properties, quantum chaos, quantum disorder and semi-classical similarity of our quantum chimera system. The quantum chimera concept is novel and induces new perspectives concerning the entanglement of multipartite systems. (c) 2015 Elsevier B.V. All rights reserved.

DOI10.1016/j.physleta.2015.11.022