  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 $\mathcal{N}=4$ 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 $5\text{D}$ 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.
