757 citations · 3.4k across the 17 of their papers we have counts for
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First-order relativistic hydrodynamics is stable
Pavel Kovtun
We study linearized stability in first-order relativistic viscous hydrodynamics in the most general frame. There is a region in the parameter space of transport coefficients where…
Einstein's Equations in Matter
Pavel Kovtun, Ashish Shukla
Einstein's equations in matter are gravitational analogues of Maxwell's equations in matter, providing an effective classical description of gravitational fields. We derive Einstei…
The complex life of hydrodynamic modes
Sašo Grozdanov, Pavel K. Kovtun, Andrei O. Starinets +1
We study analytic properties of the dispersion relations in classical hydrodynamics by treating them as Puiseux series in complex momentum. The radii of convergence of the series a…
On the convergence of the gradient expansion in hydrodynamics
Sašo Grozdanov, Pavel K. Kovtun, Andrei O. Starinets +1
Hydrodynamic excitations corresponding to sound and shear modes in fluids are characterised by gapless dispersion relations. In the hydrodynamic gradient expansion, their frequenci…