Berlin 2024 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 86: Correlated Electrons: Method Development
TT 86.5: Vortrag
Freitag, 22. März 2024, 10:30–10:45, H 3007
divERGe - an open source functional renormalization code for material calculations — •Jonas B. Hauck1, Dante M. Kennes2,3, and Lennart Klebl4 — 1Institute for Theoretical Physics, Goethe University Frankfurt, Frankfurt a.M., Germany — 2Institute for Theory of Statistical Physics, RWTH Aachen University, and JARA Fundamentals of Future Information Technology, Aachen, Germany — 3Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science, Hamburg, Germany — 4I. Institute for Theoretical Physics, Universität Hamburg, Hamburg, Germany
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-SU2 models in all of the three included FRG variants: TUFRG, 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.