The 21st International Conference on QCD in Extreme Conditions

The moat regime in the quark meson model with the FRG

3 Jul 2025, 17:40

2h 20m

Witold Swida Lecture Hall (Faculty of Law and Administration, UWr)

Poster Phase diagram and critical behaviour in QCD/QFT Poster Session

Speaker

Johannes Pöplau

Description

We use the functional renormalization group in the local potential approximation, with the full effective potential, to investigate the quark meson model for the presence of inhomogenious phases. To this end, we solve the flow equation for the bosonic two point function, to investigate if the two point function shows a negative wave function renormalization or even a zero crossing.
Furthermore we observe the necessity of employing the correct numerical procedure to avoid oscillations in the higher derivatives of the effective potential which appear in the flow equation of the two point function.