title   
  

Holographic equilibration in confining gauge theories

Demircik, Tuna (2017) Holographic equilibration in confining gauge theories. [Thesis]

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Official URL: http://risc01.sabanciuniv.edu/record=b1655305 (Table of Contents)

Abstract

We investigate the effect of external magnetic fields on equilibration in the improved holographic QCD theory in the deconfined phase using the gauge/gravity duality. In particular we calculate the quasinormal mode spectra in the corresponding black brane solutions and study their dependence on temperature, momentum and magnetic field, both in the scalar and the shear channels. We find complex patterns in the motion of quasinormal modes on the complex plane, including certain cross overs between the lowest lying modes under varying magnetic field, momentum and temperature. We also discover a critical value of the magnetic field Bc above which the hydrodynamic approximation breaks down, as the imaginary part of the first excited quasi-normal mode in the shear channel becomes smaller than that of the hydro mode. This thesis is mainly based on the published research.

Item Type:Thesis
Additional Information:Yükseköğretim Kurulu Tez Merkezi Tez No: 470648.
Subjects:Q Science > QC Physics
ID Code:34456
Deposited By:IC-Cataloging
Deposited On:16 Apr 2018 15:20
Last Modified:16 Apr 2018 15:20

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