Accelerated detectors and worldsheet horizons in AdS/CFT

Abstract

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.

34 pages, 2 figures; references added, discussion improved

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• Effect of spacetime dimensions on quantum entanglement between two uniformly accelerated atoms
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• Effective Thermal Physics in Holography: A Brief Review
• Holographic energy loss in non-relativistic backgrounds
• Accelerated paths and Unruh effect I: scalars and fermions in Anti De Sitter spacetime
• On the Beaming of Gluonic Fields at Strong Coupling
• String worldsheet for accelerating quark
• On the infrared divergence and global colour in N=4 Yang-Mills theory
• Conformal Transformations and Strings for an Accelerating Quark-Antiquark Pair in AdS3
• Classical string correspondence in $2$ and $3$ spacetime dimensions
• The Static Heavy Quark-Antiquark Potential within String Theory in Arbitrary Stationary Backgrounds
• Conformal Transformations, Rotating String and Effects of angular velocity on Accelerating Quark-Antiquark pair in $Ad{S}_3$
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