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

Journal Article · Tue Jul 01 00:00:00 EDT 2014 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.113.036402· OSTI ID:1159391

Lanatà, Nicola ^[1]; Strand, Hugo U. R. ^[2]; Yao, Yongxin ^[3]; Kotliar, Gabriel ^[1]

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1. Rutgers University
2. University of Gothenburg
3. Ames Laboratory

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.

• Research Organization: Ames Lab., Ames, IA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-07CH11358
• OSTI ID: 1159391
• Report Number(s): IS-J 8400; PRLTAO; ArticleNumber: 036402
• Journal Information: Physical Review Letters, Vol. 113, Issue 3; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE