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Abstract: We consider two ultrarelativistic shock waves propagating and colliding infive-dimensional Anti-de-Sitter spacetime. By transforming to Rosencoordinates, we are able to find the form of the metric shortly after thecollision. Using holographic renormalization, we calculate the energy-momentumtensor on the boundary of AdS space for early times after the collision. Viathe gauge-gravity duality, this gives some insights on bulk dynamics of systemscreated by high energy scattering in strongly coupled gauge theories. We findthat Bjorken boost-invariance is explicitely violated at early times and weobtain an estimate for the thermalization time in this simple system.



Autor: Daniel Grumiller, Paul Romatschke

Fuente: https://arxiv.org/







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