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Calculating the EoS of the dense quark-gluon plasma using the Complex Langevin equation
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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 $m_\pi=500-700$ 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.
Forward citations
Cited by 3 Pith papers
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Diffusion models learn distributions generated by complex Langevin dynamics
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A complex Langevin simulation of 2D spin-orbit coupled bosons gives a density equation of state where mean-field underestimates density and spin-orbit coupling suppresses pseudo-condensation.
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Energy-based diffusion models trained on complex Langevin data produce an explicit energy function for the sampled distribution, enabling MCMC without re-simulation.
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