Heavy-ion collisions at BNL's Relativistic Heavy Ion Collider and CERN's Large Hadron
Collider provide strong evidence for the formation of a quark-gluon plasma, with …

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 …

We present the first generalization of Navier-Stokes theory to relativity that satisfies all of the
following properties:(a) the system coupled to Einstein's equations is causal and strongly …

A bstract Quasinormal modes and frequencies are the eigenvectors and eigenvalues of a
non-Hermitian differential operator. They hold crucial significance in the physics of black …

Asymptotically safe gravity is based on the idea that the main contribution to the
Schwarzschild-like black hole spacetime is due to the value of the gravitational coupling …

We use causality to derive a number of simple and universal constraints on dispersion
relations, which describe the location of singularities of retarded two-point functions in …

A bstract We study black hole linear perturbation theory in a four-dimensional Schwarzschild
(anti) de Sitter background. When dealing with a positive cosmological constant, the …

A bstract We study the stability of quasinormal modes (QNMs) in electrically charged black
brane spacetimes that asymptote to AdS by means of the pseudospectrum …

Hot QCD physics studies the nuclear strong force under extreme temperature and densities.
Experimentally these conditions are achieved via high-energy collisions of heavy ions at the …

We present an exact formula for the thermal scalar two-point function in four-dimensional
holographic conformal field theories. The problem of finding it reduces to the analysis of the …