Normal mode analysis of the relativistic Boltzmann equation for massive particles reveals coupling between sound and heat channels, mass-dependent critical wavenumbers, and an infinite branch cut for Landau damping.
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A PINN-trained quasi-parton model reproduces lattice cumulants at vanishing chemical potentials and supplies a consistent four-dimensional QCD equation of state at finite densities.
Lattice QCD results show the shear viscosity to entropy density ratio of gluon plasma reaches a minimum near the transition temperature Tc while the bulk viscosity to entropy density ratio decreases monotonically from 0.76 to 2.25 Tc.
Chapman-Enskog results for QGP shear viscosity with scaled thermal-mass screening match AMY at κ=0.4, and η/s reaches ~0.15 at Tc when the strong coupling scale is set to 3T.
citing papers explorer
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Normal mode analysis within relativistic massive transport
Normal mode analysis of the relativistic Boltzmann equation for massive particles reveals coupling between sound and heat channels, mass-dependent critical wavenumbers, and an infinite branch cut for Landau damping.
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Four-dimensional QCD equation of state from a quasi-parton model with physics-informed neural networks
A PINN-trained quasi-parton model reproduces lattice cumulants at vanishing chemical potentials and supplies a consistent four-dimensional QCD equation of state at finite densities.
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Shear and bulk viscosities of the gluon plasma across the transition temperature from lattice QCD
Lattice QCD results show the shear viscosity to entropy density ratio of gluon plasma reaches a minimum near the transition temperature Tc while the bulk viscosity to entropy density ratio decreases monotonically from 0.76 to 2.25 Tc.
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Chapman-Enskog calculation of the shear viscosity of quark-gluon plasma including all $2\leftrightarrow 2$ scatterings at finite temperature
Chapman-Enskog results for QGP shear viscosity with scaled thermal-mass screening match AMY at κ=0.4, and η/s reaches ~0.15 at Tc when the strong coupling scale is set to 3T.