2024/12/08 by Asaad Daher, Daher, Asaad, Leonardo Tinti +5
Engineering · Physics and Astronomy · #FOS: Physical sciences #Fluid Dynamics Simulations and Interactions #High Energy Physics - Phenomenology (hep-ph) #Lattice Boltzmann Simulation Studies #Micro and Nano Robotics #Nuclear Theory (nucl-th)
paper · pdf · doi:10.48550/arxiv.2412.06024
openalex publication_date 2024/12/08 · openalex created_date 2024/12/12 · openalex updated_date 2026/07/28
We extend the derivation of second-order relativistic viscous hydrodynamics to incorporate the effects of baryon current, a non-vanishing chemical potential, and a realistic equation of state. Starting from a microscopic quantum theory, we employ a quasiparticle approximation to describe the evolution of hydrodynamic degrees of freedom and establish its connection to the Wigner formalism. Using methods from relativistic kinetic theory, we perform a second-order expansion to derive a closed set of equations for the components of the stress-energy tensor and the baryon current. The resulting transport coefficients, which depend on the equation of state, are obtained through a unified prescription that ensures thermodynamic consistency.