Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.nuclphysb.2012.03.016
Title: Fragile black holes and an angular momentum cutoff in peripheral heavy ion collisions
Authors: McInnes, B. 
Issue Date: 11-Aug-2012
Citation: McInnes, B. (2012-08-11). Fragile black holes and an angular momentum cutoff in peripheral heavy ion collisions. Nuclear Physics B 861 (2) : 236-258. ScholarBank@NUS Repository. https://doi.org/10.1016/j.nuclphysb.2012.03.016
Abstract: In collisions of heavy ions at extremely high energies, it is possible for a significant quantity of angular momentum to be deposited into the Quark-Gluon Plasma which is thought to be produced. We develop a simple geometric model of such a system, and show that it is dual, in the AdS/CFT sense, to a rotating AdS black hole with a topologically planar event horizon. However, when this black hole is embedded in string theory, it proves to be unstable, for all non-zero angular momenta, to a certain non-perturbative effect: the familiar planar black hole, as used in most AdS/CFT analyses of QGP physics, is "fragile". The upshot is that the AdS/CFT duality apparently predicts that the QGP should always become unstable when it is produced in peripheral collisions. However, we argue that holography indicates that relatively low angular momenta delay the development of the instability, so that in practice it may be observable only for peripheral collisions involving favorable impact parameters, generating extremely large angular momenta. In principle, the result may be holographic prediction of a cutoff for the observable angular momenta of the QGP, or perhaps of an analogous phenomenon in condensed matter physics. © 2012 Elsevier B.V.
Source Title: Nuclear Physics B
URI: http://scholarbank.nus.edu.sg/handle/10635/103294
ISSN: 05503213
DOI: 10.1016/j.nuclphysb.2012.03.016
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