PUB - Publikationen an der Universität Bielefeld

We determine the out-of-equilibrium production rate of dileptons at rest instrongly coupled N=4 Super Yang-Mills plasma using the AdS/CFT correspondence.Thermalization is achieved via the gravitational collapse of a thin shell ofmatter in AdS_5 space and the subsequent formation of a black hole, which wedescribe in a quasistatic approximation. Prior to thermalization, the dileptonspectral function is observed to oscillate as a function of frequency, but theamplitude of the oscillations decreases when thermal equilibrium is approached.At the same time, we follow the flow of the quasinormal spectrum of thecorresponding U(1) vector field towards its equilibrium limit.