2017/12/15 by Paul Romatschke, Romatschke, Paul, Ulrike Romatschke +1 · 39 citations
Physics and Astronomy · Earth and Planetary Sciences · #High-Energy Particle Collisions Research #earthquake and tectonic studies #Gamma-ray bursts and supernovae
paper · pdf · doi:10.48550/arxiv.1712.05815
Ten years ago, relativistic viscous fluid dynamics was formulated from first\nprinciples in an effective field theory framework, based entirely on the\nknowledge of symmetries and long-lived degrees of freedom. In the same year,\nnumerical simulations for the matter created in relativistic heavy-ion\ncollision experiments became first available, providing constraints on the\nshear viscosity in QCD. The field has come a long way since then. We present\nthe current status of the theory of non-equilibrium fluid dynamics in 2017,\nincluding the divergence of the fluid dynamic gradient expansion, resurgence,\nnon-equilibrium attractor solutions, the inclusion of thermal fluctuations as\nwell as their relation to microscopic theories. Furthermore, we review the\ntheory basis for numerical fluid dynamics simulations of relativistic nuclear\ncollisions, and comparison of modern simulations to experimental data for\nnucleus-nucleus, nucleus-proton and proton-proton collisions.\n