166 citations · 708 across the 10 of their papers we have counts for
9 papers · 1 filter
Shock waves in strongly coupled plasmas II
Sergei Khlebnikov, Martin Kruczenski, Georgios Michalogiorgakis
In a recent paper we have analyzed the AdS/CFT duals to shock waves propagating in the N=4 plasma. Here we study further properties of the system. In the gravity description we con…
Improved Holographic QCD
Umut Gürsoy, Elias Kiritsis, Liuba Mazzanti +2
We provide a review to holographic models based on Einstein-dilaton gravity with a potential in 5 dimensions. Such theories, for a judicious choice of potential are very close to t…
Shock waves in strongly coupled plasmas
Sergei Khlebnikov, Martin Kruczenski, Georgios Michalogiorgakis
Shock waves are supersonic disturbances propagating in a fluid and giving rise to dissipation and drag. Weak shocks, i.e., those of small amplitude, can be well described within th…
Entanglement entropy of two dimensional systems and holography
Georgios Michalogiorgakis
In this note a new method for computing the entanglement entropy of a CFT holographically is explored. It consists of finding a bulk background with a boundary metric that has the…
Low-lying gravitational modes in the scalar sector of the global AdS_4 black hole
Georgios Michalogiorgakis, Silviu S. Pufu
We compute the quasinormal frequencies corresponding to the scalar sector of gravitational perturbations in the four-dimensional AdS-Schwarzschild black hole by using the master fi…
Expanding plasmas and quasinormal modes of anti-de Sitter black holes
Joshua J. Friess, Steven S. Gubser, Georgios Michalogiorgakis +1
We compute the gravitational quasinormal modes of the global AdS_5-Schwarzschild solution. We show how to use the holographic dual of these modes to describe a thermal plasma of fi…
Stability of strings binding heavy-quark mesons
Joshua J. Friess, Steven S. Gubser, Georgios Michalogiorgakis +1
We investigate the stability against small deformations of strings dangling into AdS_5-Schwarzschild from a moving heavy quark-anti-quark pair. We speculate that emission of massiv…
The stress tensor of a quark moving through N=4 thermal plasma
Joshua J. Friess, Steven S. Gubser, Georgios Michalogiorgakis +1
We develop the linear equations that describe graviton perturbations of AdS_5-Schwarzschild generated by a string trailing behind an external quark moving with constant velocity. S…
Dissipation from a heavy quark moving through N=4 super-Yang-Mills plasma
Joshua J. Friess, Steven S. Gubser, Georgios Michalogiorgakis
Using AdS/CFT, we compute the Fourier space profile of <tr F^2> generated by a heavy quark moving through a thermal plasma of strongly coupled N=4 super-Yang-Mills theory. We find…