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arXiv · 1709.05991

The low-temperature behavior of the quark-meson model

Ralf-Arno Tripolt·Bernd-Jochen Schaefer·Lorenz von Smekal·Jochen Wambach
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Abstract

We revisit the phase diagram of strong-interaction matter for the two-flavor quark-meson model using the Functional Renormalization Group. In contrast to standard mean-field calculations, an unusual phase structure is encountered at low temperatures and large quark chemical potentials. In particular, we identify a regime where the pressure decreases with increasing temperature and discuss possible reasons for this unphysical behavior.

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Ralf-Arno Tripolt, Bernd-Jochen Schaefer, Lorenz von Smekal, Jochen Wambach. 2017-09-18. The low-temperature behavior of the quark-meson model. https://doi.org/10.1103/physrevd.97.034022

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