Rudolf Baier, Stefan A. Stricker, Olli Taanila, Aleksi Vuorinen
We study the production of prompt photons in strongly coupled out-of-equilibrium Super Yang-Mills plasma using the AdS/CFT correspondence. Our goal is to determine the photon emission spectrum at different stages of a thermalization process, which is modeled via the gravitational collapse of a thin spherical shell in AdS$_5$ space. Particular emphasis is placed on the limit of large frequencies, which we are able to treat analytically.
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http://arxiv.org/abs/1207.1116
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