One of the many physical questions that have emerged from studies of heavy-ion collisions
at RHIC and the LHC concerns the validity of hydrodynamic modelling at the very early …

Relativity opens the door to a counterintuitive fact: A state can be stable to perturbations in
one frame of reference and unstable in another one. For this reason, the job of testing the …

We show that linear superpositions of plane waves involving a single-valued, covariantly
stable dispersion relation ω (k) always propagate outside the light cone unless ω (k)= a+ bk …

Causality is necessary for retarded Green's functions to remain retarded in all inertial frames
in relativity, which ensures that dissipation of fluctuations is a Lorentz invariant concept. For …

We develop a general formalism for introducing stochastic fluctuations around
thermodynamic equilibrium which takes into account, for the first time, recent developments …

We obtain stability criteria for diffusive inviscid multicomponent Israel-Stewart
hydrodynamics with and without background or dynamic electromagnetic fields. Our …

Close to equilibrium, the kinetic coefficients of a thermodynamic system must satisfy a set of
symmetry conditions, which follow from the Onsager-Casimir principle. Here, we show that, if …

We study the GENERIC hydrodynamic theory for relativistic liquids formulated by Öttinger
and collaborators. We use the maximum entropy principle to derive its conditions for linear …

We provide rigorous criteria to determine whether the nonhydrodynamic sector of a
relativistic kinetic theory is gapless. These general criteria apply to both Boltzmann's …

A general organizing principle is proposed that can be used to derive the equations of
motion describing the near-equilibrium dynamics of causal and thermodynamically stable …