TU2FRG: a scalable approach for truncated unity functional renormalization 
group in generic fermionic models

Hauck, J. B.; Kennes, D. M.

doi:10.1140/epjb/s10051-022-00316-x

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

TU²FRG: a scalable approach for truncated unity functional renormalization group in generic fermionic models

MPS-Authors

/persons/resource/persons245033

Kennes, D. M.
Institute for Theoretical Solid State Physics, RWTH Aachen University;
JARA-Fundamentals of Future Information Technology, Julich;
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science;

External Resource

https://arxiv.org/abs/2201.06299
(Preprint)

https://doi.org/10.1140/epjb/s10051-022-00316-x
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

s10051-022-00316-x.pdf
(Publisher version), 596KB

Supplementary Material (public)

There is no public supplementary material available

Citation

Hauck, J. B., & Kennes, D. M. (2022). TU²FRG: a scalable approach for truncated unity functional renormalization group in generic fermionic models. The European Physical Journal B: Condensend Matter Physics, 95(3): 60. doi:10.1140/epjb/s10051-022-00316-x.

Cite as: https://hdl.handle.net/21.11116/0000-0009-CEB4-4

Abstract

Describing the emergence of phases of condensed matter is one of the central challenges in physics. For this purpose many numerical and analytical methods have been developed, each with their own strengths and limitations. The functional renormalization group is one of these methods bridging between efficiency and accuracy. In this paper we derive a new truncated unity (TU) approach unifying real- and momentum space TU, called TU2FRG. This formalism significantly improves the scaling compared to conventional momentum (TU)FRG when applied to large unit-cell models and models where the translational symmetry is broken.