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  divERGe implements various Exact Renormalization Group examples

Hauck, J. B., Kennes, D. M., & Klebl, L. (2024). divERGe implements various Exact Renormalization Group examples. SciPost Physics Codebases, 26. doi:10.21468/SciPostPhysCodeb.26.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000D-EDA2-1 Version Permalink: https://hdl.handle.net/21.11116/0000-000E-6774-C
Genre: Journal Article

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SciPostPhysCodeb_26.pdf (Publisher version), 790KB
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© J. B. Profe et al.
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https://arxiv.org/abs/2311.07667 (Preprint)
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https://doi.org/10.21468/SciPostPhysCodeb.26 (Publisher version)
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https://doi.org/10.21468/SciPostPhysCodeb.26-r0.5 (Code)
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 Creators:
Hauck, J. B.1, Author
Kennes, D. M.1, 2, 3, Author           
Klebl, L.4, Author
Affiliations:
1Institute for Theory of Statistical Physics, RWTH Aachen University, and JARA Fundamentals of Future Information Technology, ou_persistent22              
2Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
3Center for Free-Electron Laser Science, ou_persistent22              
4I. Institute for Theoretical Physics, Universität Hamburg, ou_persistent22              

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 Abstract: We present divERGe, an open source, high-performance C/C++/Python library for functional renormalization group (FRG) calculations on lattice fermions. The versatile model interface is tailored to real materials applications and seamlessly integrates with existing, standard tools from the ab-initio community. The code fully supports multi-site, multi-orbital, and non-SU(2) models in all of the three included FRG variants: TU2FRG, N-patch FRG, and grid FRG. With this, the divERGe library paves the way for widespread application of FRG as a tool in the study of competing orders in quantum materials.

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Language(s): eng - English
 Dates: 2023-11-152024-01-302024-02-08
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: arXiv: 2311.07667
DOI: 10.21468/SciPostPhysCodeb.26
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Project name : The authors gratefully acknowledge computing time granted through JARA on the supercomputer JURECA [73] at Forschungszentrum Jülich. JBP and DMK are sup- ported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under RTG 1995, within the Priority Program SPP 2244 “2DMP” — 443273985 and under Germany’s Excellence Strategy - Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1 - 390534769. LK gratefully acknowledges support from the DFG through FOR 5249 (QUAST, Project No. 449872909, TP5).
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Source 1

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Title: SciPost Physics Codebases
  Abbreviation : SciPost Phys. Codebases
Source Genre: Journal
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Publ. Info: Amsterdam : SciPost Foundation
Pages: - Volume / Issue: 26 Sequence Number: - Start / End Page: - Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/SciPostPhysCodeb