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arXiv · 1407.4467

When UV and IR Collide: Inequivalent CFTs From Different Foliations Of AdS

Borun D. Chowdhury·Maulik K. Parikh
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Abstract

In the AdS/CFT correspondence, CFTs are identified by asymptotic boundary surfaces and the boundary conditions imposed on those surfaces. However, AdS can be foliated in various ways to give different boundaries. We show that the CFTs obtained using certain distinct foliations are different. This difference arises because the asymptotic region of a foliation overlaps with the deep interior region of another. In particular we focus on the CFTs defined on surfaces of large constant radius in global coordinates, Rindler-AdS coordinates, and Poincaré coordinates for AdS$_3$. We refer to these as global-CFT, Rindler-CFT and Poincaré-CFT respectively. We demonstrate that the correlators for these CFTs are different and argue that the bulk duals to these should agree up to very close to the respective horizons but then start differing. Since the BTZ black hole is obtained as a quotient of AdS$_3$, we discuss the implications of our results for bulk duals of periodically-identified Poincaré and Rindler-CFTs. Our results are consistent with some recent proposals suggesting a modification of the semi-classical BTZ geometry close to the horizons.

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Borun D. Chowdhury, Maulik K. Parikh. 2014-07-16. When UV and IR Collide: Inequivalent CFTs From Different Foliations Of AdS. https://doi.org/10.1103/physrevd.93.046004

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