Journal Article

FZJ-2020-05072

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Quasi-particle functional Renormalisation Group calculations in the two-dimensional half-filled Hubbard model at finite temperatures

Rohe, D. (Corresponding author)FZJ* ; Honerkamp , C.RWTH*

2020
SciPost Foundation Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/26425  doi:10.21468/SciPostPhys.9.6.084

Abstract: We present a highly parallelisable scheme for treating functional Renormalisation Group equations which incorporates a quasi-particle-based feedback on the flow and provides direct access to real-frequency self-energy data. This allows to map out the boundaries of Fermi-liquid regimes and to study the effect of quasi-particle degradation near Fermi liquid instabilities. As a first application, selected results for the two-dimensional half-filled perfectly nested Hubbard model are shown.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)
2. JARA - HPC (JARA-HPC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. High-resolution Functional Renormalisation Group (fRG) calculations for the 2d Hubbard model (jjsc45_20190501) (jjsc45_20190501)
3. Simulation and Data Laboratory Quantum Materials (SDLQM) (SDLQM) (SDLQM)

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; Science Citation Index Expanded ; Web of Science Core Collection

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