Early quark production and approach to chemical equilibrium

Abstract

We perform real-time lattice simulations of out-of-equilibrium quark production in non-Abelian gauge theory in 3+1-dimensions. Our simulations include the backreaction of quarks onto the dynamical gluon sector, which is particularly relevant for strongly correlated quarks. We observe fast isotropization and universal behavior of quarks and gluons at weak coupling and establish a quantitative connection to previous pure glue results. In order to understand the strongly correlated regime, we perform simulations for a large number of flavors and compare them to those obtained with two light quark flavors. By doing this we are able to provide estimates of the chemical equilibration time.

References in corpus (10)

• The Color Glass Condensate
• Quantum corrections to the dynamics of interacting bosons: beyond the truncated Wigner approximation
• Universality far from equilibrium: From superfluid Bose gases to heavy-ion collisions
• Turbulence in nonabelian gauge theory
• Quantum versus classical statistical dynamics of an ultracold Bose gas
• Chemical thermalization in relativistic heavy ion collisions
• Thermal photon $v_2$ with slow quark chemical equilibration
• Low-cost fermions in classical field simulations
• Instabilities in non-expanding glasma
• Connecting real-time properties of the massless Schwinger model to the massive case

Cited by in corpus (26)

• Advances in QED with intense background fields
• QCD thermalization: Ab initio approaches and interdisciplinary connections
• Off-equilibrium sphaleron transitions in the Glasma
• Implementing quantum electrodynamics with ultracold atomic systems
• Chemical Equilibration in Hadronic Collisions
• Chemical Equilibration in Weakly Coupled QCD
• Non-equilibrium study of the Chiral Magnetic Effect from real-time simulations with dynamical fermions
• Parametric estimate of the relative photon yields from the Glasma and the Quark-Gluon Plasma in heavy-ion collisions
• Chiral magnetic effect and anomalous transport from real-time lattice simulations
• Simulating collisions of thick nuclei in the color glass condensate framework
• Evolution to the Quark-Gluon Plasma
• Effective kinetic description of the expanding overoccupied Glasma
• Anomaly-induced dynamical refringence in strong-field QED
• Transient anomalous charge production in strong-field QCD
• Time evolution of linearized gauge field fluctuations on a real-time lattice
• Schwinger pair production and string breaking in non-Abelian gauge theory from real-time lattice improved Hamiltonians
• Nonequilibrium quark production in the expanding QCD plasma
• Real-time lattice gauge theory actions: unitarity, convergence, and path integral contour deformations
• Implicit schemes for real-time lattice gauge theory
• Nonequilibrium axial charge production in expanding glasma flux tubes
• Non-cancellation of the parity anomaly in the strong-field regime of QED${}_{2+1}$
• Quark and Gluon Production from a Boost-invariantly Expanding Color Electric Field
• Gauge invariant canonical symplectic algorithms for real-time lattice strong-field quantum electrodynamics
• Nonequilibrium quark production in the expanding QCD plasma
• Gauge ambiguity of the quark spectrum in the Color Glass Condensate
• Massless quark production in chromoelectric field with back reaction