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arxiv: 0812.2909 · v2 · submitted 2008-12-16 · ✦ hep-th

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Real-time gauge/gravity duality: Prescription, Renormalization and Examples

Kostas Skenderis , Balt C. van Rees
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classification ✦ hep-th
keywords functionsprescriptioncomputationdualityexamplesfinalgaugegravity
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We present a comprehensive analysis of the prescription we recently put forward for the computation of real-time correlation functions using gauge/gravity duality. The prescription is valid for any holographic supergravity background and it naturally maps initial and final data in the bulk to initial and final states or density matrices in the field theory. We show in detail how the technique of holographic renormalization can be applied in this setting and we provide numerous illustrative examples, including the computation of time-ordered, Wightman and retarded 2-point functions in Poincare and global coordinates, thermal correlators and higher-point functions.

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