Instabilities of the Small Black Hole: a view from N=4 SYM
Abstract
We compute a one-loop effective action for the constant modes of the scalars and the Polyakov loop matrix of N=4 SYM on S^3 at finite temperature and weak 't Hooft coupling. Above a critical temperature, the effective potential develops new unstable directions accompanied by new saddle points which only preserve an SO(5) subgroup of the SO(6) global R-symmetry. We identify this phenomenon as the weak coupling version of the well known Gregory-Laflamme localization instability in the gravity dual of the strongly coupled field theory: The small AdS_5 black hole when viewed as a ten dimensional, asymptotically AdS_5 X S^5 solution smeared on the S^5 is unstable to localization on S^5. Our effective potential, in a specific Lorentzian continuation, can provide a qualitative holographic description of the decay of the "topological black hole'' into the AdS bubble of nothing.
Keywords
Cite
@article{arxiv.hep-th/0607111,
title = {Instabilities of the Small Black Hole: a view from N=4 SYM},
author = {Timothy Hollowood and S. Prem Kumar and Asad Naqvi},
journal= {arXiv preprint arXiv:hep-th/0607111},
year = {2010}
}
Comments
39 pages, 6 figures, uses JHEP3.cls, references added