Extension of KoMPoST to (3+1)D non-boost-invariant pre-equilibrium dynamics via kinetic theory response functions, chained into a full McDIPPER+KoMPoST-3D+CLVisc+SMASH simulation chain to study sensitivity of longitudinal flow to hydrodynamic start time.
Isotropization and hydrodynamization in weakly coupled heavy-ion collisions
7 Pith papers cite this work. Polarity classification is still indexing.
7
Pith papers citing it
abstract
We numerically solve 2+1D effective kinetic theory of weak coupling QCD under longitudinal expansion relevant for early stages of heavy-ion collisions. We find agreement with viscous hydrodynamics and classical Yang-Mills simulations in the regimes where they are applicable. By choosing initial conditions that are motivated by color-glass-condensate framework we find that for Q=2GeV and $\alpha_s$=0.3 the system is approximately described by viscous hydrodynamics well before $\tau \lesssim 1.0$ fm/c.
representative citing papers
BEDA kinetic evolution washes out initial azimuthal anisotropies with higher harmonics relaxing faster and shifts the pT peak of vn upward, qualitatively matching small-system data.
Models chemical non-equilibrium in finite-density QGP under conformal Gubser flow and its impact on hard thermal photon production, finding delayed equilibration with quarks lagging gluons, suppressed total yield but enhanced early high-pT photons, and distinct temporal emission structure.
For the dipole gluon TMD, the Sudakov-limited maximum phase-space density of h_1^{⊥g} is 2 n_g^{max} ∼ 2 α_s^{-3/2} in the saturation region.
Minijet thermalization time in a thermal gluon plasma scales with the jet quenching parameter q-hat once recoiling medium contributions are added to standard transport coefficient definitions.
Box and expanding simulations with SMASH extended to 2-to-3 quark processes show energy spectrum thermalizes by ~0.2 fm/c, momentum isotropizes by ~2 fm/c, but chemical equilibration remains incomplete by 5 fm/c and hydrodynamics breaks down after ~4 fm/c.
In 1D lattice Schwinger and NJL models, single-particle momentum distributions dominate two-particle correlations once thermal kinetic energy becomes comparable to the interaction strength, supporting applicability of kinetic theory.
citing papers explorer
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(3+1)D event-by-event pre-equilibrium dynamics in heavy-ion collisions
Extension of KoMPoST to (3+1)D non-boost-invariant pre-equilibrium dynamics via kinetic theory response functions, chained into a full McDIPPER+KoMPoST-3D+CLVisc+SMASH simulation chain to study sensitivity of longitudinal flow to hydrodynamic start time.
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Azimuthal momentum isotropization in the Quark-Gluon Plasma thermalization
BEDA kinetic evolution washes out initial azimuthal anisotropies with higher harmonics relaxing faster and shifts the pT peak of vn upward, qualitatively matching small-system data.
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Finite-Density Dynamics of Chemically Equilibrating QGP in Conformal Gubser Flow and Hard Thermal Photon Production
Models chemical non-equilibrium in finite-density QGP under conformal Gubser flow and its impact on hard thermal photon production, finding delayed equilibration with quarks lagging gluons, suppressed total yield but enhanced early high-pT photons, and distinct temporal emission structure.
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Maximum phase-space density of linearly polarized gluon TMDs in the saturation region
For the dipole gluon TMD, the Sudakov-limited maximum phase-space density of h_1^{⊥g} is 2 n_g^{max} ∼ 2 α_s^{-3/2} in the saturation region.
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Minijet thermalization and jet transport coefficients in QCD kinetic theory
Minijet thermalization time in a thermal gluon plasma scales with the jet quenching parameter q-hat once recoiling medium contributions are added to standard transport coefficient definitions.
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Chemical Equilibration and Thermalization of Quark-Gluon Plasma in a Parton Cascade Model with 2-to-3 Quark Interactions
Box and expanding simulations with SMASH extended to 2-to-3 quark processes show energy spectrum thermalizes by ~0.2 fm/c, momentum isotropizes by ~2 fm/c, but chemical equilibration remains incomplete by 5 fm/c and hydrodynamics breaks down after ~4 fm/c.
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Applicability of kinetic theory in strongly coupled thermal quantum systems
In 1D lattice Schwinger and NJL models, single-particle momentum distributions dominate two-particle correlations once thermal kinetic energy becomes comparable to the interaction strength, supporting applicability of kinetic theory.