Waeber, Sebastian (2019) Quasinormal modes of magnetic black branes at finite 't Hooft coupling. JOURNAL OF HIGH ENERGY PHYSICS (8): 006. ISSN 1029-8479,
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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 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 alpha ' (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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CONSTANT DEPENDENCE; CFT PLASMA; AdS-CFT Correspondence; Holography and quark-gluon plasmas; Black Holes in String Theory; Gauge-gravity correspondence |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Apr 2020 06:01 |
| Last Modified: | 02 Apr 2020 06:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26551 |
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