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

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arxiv 1907.08712 v2 pith:GDAXM7YP submitted 2019-07-19 hep-lat hep-ph

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

classification hep-lat hep-ph
keywords complexlangevinactionchemicalequationimprovedplasmaquark-gluon
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Finite-density equation of state of hot QCD using the complex Langevin equation

    hep-lat 2026-04 unverdicted novelty 6.0

    Continuum-extrapolated lattice QCD simulations with complex Langevin produce the equation of state at high baryon chemical potentials above the crossover temperature at the physical point.

  2. The emergence of (3+1)-dimensional expanding spacetime from complex Langevin simulations of the Lorentzian type IIB matrix model with deformations

    hep-th 2026-04 unverdicted novelty 5.0

    Complex Langevin simulations of the deformed Lorentzian type IIB matrix model show emergence of smooth (3+1)-dimensional expanding spacetime with real space and time.

  3. Correctness criteria for complex Langevin

    hep-lat 2026-04 unverdicted novelty 4.0

    A comparison of prominent correctness criteria for complex Langevin dynamics on four simple models shows differences in applicability, ease of use, and predictive power.