In this thesis, classes of strongly interacting quantum field theories, have been studied. A non-perturbative method applied to these theories are gauge/gravity duality or holographic duality,... Show moreIn this thesis, classes of strongly interacting quantum field theories, have been studied. A non-perturbative method applied to these theories are gauge/gravity duality or holographic duality, which map a system of quantum field theory to a theory of gravity in higher dimensions. This thesis focused on the transport coefficients which govern the low energy excitations of these systems. Show less
