May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Fast hydrodynamization with bulk viscosity

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Initial state physics and approach to equilibrium Poster Session


Jorge Casalderrey Solana (University of Oxford) David Mateos (ICREA & U. Barcelona)


Ever since the discovery of the quark-gluon plasma the understanding of its fas thermalization has been a topic of intense research. We use the gauge/gravity duality to model the out-of-equilibrium first stage of a heavy ion collision through the collision of gravitational shockwaves in numerical relativity. This investigation of collisions of sheets of energy density in a non-conformal theory with a gravity dual is the first non-conformal holographic simulation of a heavy ion collision. We demonstrate new non-conformal physics that arises (as compared to the much simpler conformal case) such as a new plasma relaxation channel, the equilibration of the conformal symmetry breaking scalar condensate and the presence of a sizeable bulk viscosity. These ingredients are crucial to make contact of the fast hydrodynamization process of hot plasmas with real-world QCD deconfinement matter.

Content type Theory
Collaboration HoloLHC
Centralised submission by Collaboration Presenter name will be specified later

Primary authors

maximilian attems (University of Barcelona) Jorge Casalderrey Solana (University of Oxford) David Mateos (ICREA & U. Barcelona) Miguel Zilhão

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