50 citations · 57 across the 7 of their papers we have counts for
9 papers
The causal diamond of relativistic hydrodynamics
L. Gavassino
The convergence of hydrodynamics is commonly investigated by Taylor-expanding the gapless dispersion relations around . We show that this diagnostic can fail arbitraril…
Exact interpolation between Fick and Cattaneo diffusion in relativistic kinetic theory
Lorenzo Gavassino
We construct a family of exactly solvable relativistic kinetic theories in dimensions whose hydrodynamic sector continuously interpolates between Fick's and Cattaneo's laws o…
Plasma oscillations within Israel-Stewart theory
Lorenzo Gavassino
It is well known that, at zero wavenumber, the non-hydrodynamic frequencies of uncharged kinetic theory are purely imaginary. On the other hand, it was recently shown that, in resi…
What happens in hydrodynamic simulations of heavy-ion collisions when causality is violated?
Lorenzo Gavassino, Henry Hirvonen, Jean-Francois Paquet +2
We summarize our recent investigations on how causality violations in Israel-Stewart-type relativistic viscous hydrodynamic simulations can give rise to both analytical and numeric…
Acausality-driven instabilities in transient relativistic viscous hydrodynamics
Lorenzo Gavassino, Henry Hirvonen, Jean-François Paquet +2
We investigate non-linear instabilities stemming from superluminal propagation of information in Israel-Stewart-like models of relativistic viscous fluid dynamics. In relativity, t…
Solitons and singularities in relativistic ultrastiff fluids
Lorenzo Gavassino
A mathematical duality exists between massless scalar fields and relativistic fluids governed by an ultrastiff equation of state, in which the pressure equals the mass-energy densi…
Feasibility of measuring the speed of sound of the quark-gluon plasma from the multiplicity and mean of ultracentral heavy-ion collisions
Lorenzo Gavassino, Henry Hirvonen, Jean-François Paquet +2
The mean transverse momentum of hadrons has been observed experimentally and in numerical simulations to have a power-law dependence on the hadronic multiplic…
Extending Israel-Stewart theory: Causal bulk viscosity at large gradients
Lorenzo Gavassino
We present a class of relativistic fluid models for cold and dense matter with bulk viscosity, whose equilibrium equation of state is polytropic. These models reduce to Israel-Stew…
Bounds on transport from hydrodynamic stability
L. Gavassino
It was recently shown that the dispersion relations describing singularities of retarded two-point functions in causal quantum field theories always satisfy the fundamental inequal…