This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.21468/SciPostPhys.9.6.084 in citations.
Please use the identifier: http://hdl.handle.net/2128/26425 in citations.
Quasi-particle functional Renormalisation Group calculations in the two-dimensional half-filled Hubbard model at finite temperatures
Quasi-particle functional Renormalisation Group calculations in the two-dimensional half-filled Hubbard model at finite temperatures
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 t...
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Personal Name(s): | Rohe, Daniel (Corresponding author) |
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Honerkamp , Carsten | |
Contributing Institute: |
JARA - HPC; JARA-HPC Jülich Supercomputing Center; JSC |
Published in: | SciPost physics, 9 (2020) 6, S. 084 |
Imprint: |
Amsterdam
SciPost Foundation
2020
|
DOI: |
10.21468/SciPostPhys.9.6.084 |
Document Type: |
Journal Article |
Research Program: |
Simulation and Data Laboratory Quantum Materials (SDLQM) High-resolution Functional Renormalisation Group (fRG) calculations for the 2d Hubbard model Computational Science and Mathematical Methods |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/26425 in citations.
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. |