Accelerated detectors and worldsheet horizons in AdS/CFT

Details Accelerated detectors and worldsheet horizons in AdS/CFT Accelerated detectors and worldsheet horizons in AdS/CFT

2010-11-18

arxiv.org/abs/1011.4206v3

JHEP 1103:063,2011

Physics

High Energy Physics

High Energy Physics - Theory

34 pages, 2 figures; references added, discussion improved

Scientific paper

10.1007/JHEP03(2011)063

We use the AdS/CFT correspondence to discuss the response of an accelerated observer to the quantum vacuum fluctuations. In particular, we study heavy quarks probing a strongly coupled CFT by analysing strings moving in AdS. We propose that, in this context, a non-trivial detection rate is associated to the existence of a worldsheet horizon and we find an Unruh-like expression for the worldsheet temperature. Finally, by examining a rotating string in global AdS we find that there is a transition between string embeddings with and without worldsheet horizon. The dual picture corresponds to having non-trivial or trivial interaction with the quantum vacuum respectively. This is in qualitative agreement with results of Davies et al.

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