257 citations · 1.2k across the 45 of their papers we have counts for
3 papers · 1 filter
Dispersion relations alone cannot guarantee causality
Lorenzo Gavassino, Marcelo M. Disconzi, Jorge Noronha
We show that linear superpositions of plane waves involving a single-valued, covariantly stable dispersion relation always propagate outside the lightcone, unless $ω(k) =a+b…
Challenges in Solving Chiral Hydrodynamics
Enrico Speranza, Fabio S. Bemfica, Marcelo M. Disconzi +1
We prove that ideal chiral hydrodynamics, as derived from chiral kinetic theory, is acausal and its initial-value problem is ill-posed both in the linearized case around a local eq…
Nonlinear Constraints on Relativistic Fluids Far From Equilibrium
Fabio S. Bemfica, Marcelo M. Disconzi, Vu Hoang +2
New constraints are found that must necessarily hold for Israel-Stewart-like theories of fluid dynamics to be causal far away from equilibrium. Conditions that are sufficient to en…