Journal Article

FZJ-2021-03994

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The Antiferromagnetic Character of the Quantum Phase Transition in the Hubbard Model on the Honeycomb Lattice

Ostmeyer, J. (Corresponding author) ; Berkowitz, E.FZJ* ; Krieg, S.FZJ* ; Lähde, T. A.FZJ* ; Luu, T. ; Urbach, C.FZJ*

2021
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/28844  doi:10.1103/PhysRevB.104.155142

Abstract: We provide a unified, comprehensive treatment of all operators that contribute to the antiferromagnetic, ferromagnetic, and charge-density-wave structure factors and order parameters of the hexagonal Hubbard Model. We use the Hybrid Monte Carlo algorithm to perform a systematic, carefully controlled analysis in the temporal Trotter error and of the thermodynamic limit. We expect our findings to improve the consistency of Monte Carlo determinations of critical exponents. We perform a data collapse analysis and determine the critical exponent β=0.898(37) for the semimetal-Mott insulator transition in the hexagonal Hubbard Model. Our methods are applicable to a wide range of lattice theories of strongly correlated electrons.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)
2. Theorie der Starken Wechselwirkung (IAS-4)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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