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arXiv · 1907.08712

Calculating the EoS of the dense quark-gluon plasma using the Complex Langevin equation

Dénes Sexty
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Abstract

The pressure and energy density of the quark-gluon plasma at finite baryon chemical potential are calculated using the Complex Langevin equation. The stout smearing procedure is generalized for the SL(3,$\mathcal{C}$) manifold allowing the usage of an improved action in the Complex Langevin setup. Four degenerate flavors of staggered quarks with $m_π=500-700$ MeV are used with a tree-level Symanzik improved gauge action on $16^3 \times 8 $ lattices. Results are compared to the Taylor expansion and good agreement is found for small chemical potentials.

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Dénes Sexty. 2019-10-11. Calculating the EoS of the dense quark-gluon plasma using the Complex Langevin equation. https://doi.org/10.1103/physrevd.100.074503

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