Springer Berlin Heidelberg
Berlin/Heidelberg
Springer
13130
10.1007/13130.1029-8479
1029-8479
32745009
Journal of High Energy Physics
J. High Energ. Phys.
Physics
Elementary Particles, Quantum Field Theory
Quantum Field Theories, String Theory
Classical and Quantum Gravitation, Relativity Theory
Quantum Physics
Physics and Astronomy
2019
2019
12
8
8
179
2019
11
23
2019
8
2019
SISSA, Trieste, Italy
2019
11010
1811.04040
10.1007/JHEP08(2019)006
6
6
Quasinormal modes of magnetic black branes at finite ’t Hooft coupling
Regular Article - Theoretical Physics
1
30
2019
8
1
2019
5
3
2019
6
24
2019
7
22
2019
8
1
The Author(s)
2019
13130
2019
2019
8
8
Sebastian
Waeber
sebastian.waeber@physik.uni-regensburg.de
grid.7727.5
0000 0001 2190 5763
Institute for Theoretical Physics
University of Regensburg
Universitätsstr. 31
D-93040
Regensburg
Germany
Abstract
The aim of this work is to extend the knowledge about Quasinormal Modes (QNMs) and the equilibration of strongly coupled systems, specifically of a quark gluon plasma (which we consider to be in a strong magnetic background field) by using the duality between
$\mathcal{N}$
$$ \mathcal{N} $$
= 4 Super Yang-Mills (SYM) theory and type IIb Super Gravity (SUGRA) and including higher derivative corrections. The behaviour of the equilibrating system can be seen as the response of the system to tiny excitations. A quark gluon plasma in a strong magnetic background field, as produced for very short times during an actual heavy ion collision, is described holographically by certain metric solutions to 5D Einstein-Maxwell- (Chern-Simons) theory, which can be obtained from type IIb SUGRA. We are going to compute higher derivative corrections to this metric and consider α′ 3 corrections to tensor- quasinormal modes in this background geometry. We find indications for a strong influence of the magnetic background field on the equilibration behaviour also and especially when we include higher derivative corrections.
Keywords
AdS-CFT Correspondence
Holography and quark-gluon plasmas
Black Holes in String Theory
Gauge-gravity correspondence
ArXiv ePrint:
1811.04040