Jun 20 – 23, 2022
Max Planck Institut für Festkörperforschung
Europe/Berlin timezone

Multiloop fRG Analysis of the Attractive Hubbard Model

Jun 20, 2022, 5:30 PM
2D5 (Max Planck Institut für Festkörperforschung)


Max Planck Institut für Festkörperforschung

Contributed Poster Poster Session


Aiman Al-Eryani (University of Tübingen)


We analyse the effect of multiloop corrections in the 2D Attractive Hubbard Model. In a TU-fRG scheme where the conventional multi-loop self-energy flow equations are replaced with a Schwinger-Dyson flow, we demonstrate the importance of self-energy iteration in the convergence to reference Parquet results. Furthermore, we study the feedback of the s-wave pairing fluctuations on the charge density wave order.

Primary authors

Aiman Al-Eryani (University of Tübingen) Sabine Andergassen (University of Tübingen) Sarah Heinzelmann (University of Tübingen) Anna Kauch (TU Wien) Alessandro Toschi (TU Wien)

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