Gauge-gravity duality and thermalization of a boost-invariant perfect fluid

By Romuald A. Janik, R. Peschanski. 2006

178 citations recorded by the source corpus.

We derive the equation for the quasinormal modes corresponding to the scalar excitation of a black hole moving away in the fifth dimension. This geometry is the AdS/CFT dual of a boost-invariant expanding perfect fluid in N=4 SUSY Yang-Mills theory at large proper-time. On the gauge-theory side, the dominant solution of the equation describes the decay back to equilibrium of a scalar excitation of the perfect fluid. Its characteristic proper-time can be interpreted as a thermalization time of the perfect fluid, which is a universal (and numerically small) constant in units of the unique scale of the problem. This may provide a new insight on the short thermalization-time puzzle encountered in heavy-ion collision phenomenology. A nontrivial scaling behavior in proper-time is obtained which can be interpreted in terms of a slowly varying adiabatic approximation.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b60e251b8d200f94c2866fc9cdc6e13b479caae7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. T. Takayanagi
2. V. Hubeny
3. M. Rangamani
4. T. Nishioka
5. R. Myers
6. S. Hartnoll
7. S. Gubser
8. A. Karch

In Nuclear and High Energy Physics

1. V. Hubeny
2. T. Takayanagi
3. M. Rangamani
4. T. Nishioka
5. R. Myers
6. A. Karch
7. S. Gubser
8. D. Harlow

Citations in the corpus

• A Holographic View on Physics out of Equilibrium (2010, methodology): “In particular, let us consider the holographic dual to Bjorken flow [173, 174], also studied in [170].”
• Nonlinear fluid dynamics from gravity (2007, unknown): “…order . . . . . . . . . . . . . . . . . . . . 14 3.4.2 Nature of source terms . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.4.3 Solution of the constraint equations . . . . . . . . . . . . . . . . . . 16 3.4.4 Solving for g(2) and the second order stress tensor . . . . . . . . . . 16”
• Thermalization with a chemical potential from AdS spaces (2012, background): “Earlier studies of holographic thermalization described as a dual process of black hole formation have been presented in references [28, 29, 30, 31, 32, 33, 34, 35].”
• Probe branes, time-dependent couplings and thermalization in AdS/CFT (2010, background): “This is quite similar to the investigation of cosmological backgrounds in [5–9], forced fluid dynamics [43] or black hole formation [25–30].”
• From Gauge-string duality to strong interactions: A Pedestrian's guide (2009, background): “however, a more refined analysis (63) shows that shear viscosity corrections enter with a magnitude as expected from the relation η/s = 1/4π.”
• Gravity and hydrodynamics: lectures on the fluid-gravity correspondence (2009, background): “studies and the attempts to construct the holographic dual of the so called Bjorken flow [45, 46](4) which is believed to be relevant to understanding the central region of heavy-ion collisions hydrodynamically [61].”