20.500.12556/RUL-175210 Relaxation for massive particles: transport and causality Correlators at finite density and temperature encode important information about a physical system, such as transport and causality. For a massive gas of particles in the relaxation time approximation of kinetic theory, we provide complete analytic results for all first order transport coefficients, including thermoelectric coefficients. We demonstrate the first complete picture of the complex structure of the correlators as a function of mass, providing an interpretation in terms of the causal structure of light cones. We provide a simple criterion to extract the effective light cone velocity from the cut of the retarded correlator. relativistic hydrodynamics kinetic theory transport phenomena relativistična hidrodinamika kinetična teorija transportni pojavi true false true Angleški jezik Slovenski jezik Članek v reviji 2025-10-21 14:20:38 2025-10-21 14:20:39 2025-12-07 03:57:12 0000-00-00 00:00:00 2025 0 0 Str. 065002-1-065002-20 iss. 6 Vol. 112 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532/533 2470-0010 10.1103/v4tj-fj5k 254125315 v4tj-fj5k.pdf v4tj-fj5k.pdf 1 45EDB2F57C26DEC2CA4F6BE962075745 070c5f6050c461bec3d409e5990584148dfa583e573c8ef06b95c19dc8f43a72 9cc1bf52-ae78-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=220542 https://journals.aps.org/prd/abstract/10.1103/v4tj-fj5k 0 b1ae4106-ae78-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=220543 Fakulteta za matematiko in fiziko 0 0 0