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Principle of Maximum Entanglement Entropy and Local Physics of Strongly Correlated Materials

TitlePrinciple of Maximum Entanglement Entropy and Local Physics of Strongly Correlated Materials
Publication TypeJournal Article
Year of Publication2014
AuthorsLanata, N, Strand, HUR, Yao, YX, Kotliar, G
JournalPhysical Review Letters
Volume113
Pagination036402
Date Published07
Type of ArticleArticle
ISBN Number0031-9007
Accession NumberWOS:000339096600017
Keywordsquantum-systems, statistical-mechanics, valence
Abstract

We argue that, because of quantum entanglement, the local physics of strongly correlated materials at zero temperature is described in a very good approximation by a simple generalized Gibbs distribution, which depends on a relatively small number of local quantum thermodynamical potentials. We demonstrate that our statement is exact in certain limits and present numerical calculations of the iron compounds FeSe and FeTe and of the elemental cerium by employing the Gutzwiller approximation that strongly support our theory in general.

DOI10.1103/PhysRevLett.113.036402
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