When is holography consistent?
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Publication:906739
DOI10.1016/J.NUCLPHYSB.2015.07.001zbMATH Open1329.83228arXiv1504.07344OpenAlexW1902991993MaRDI QIDQ906739
Author name not available (Why is that?)
Publication date: 22 January 2016
Published in: (Search for Journal in Brave)
Abstract: Holographic duality relates two radically different kinds of theory: one with gravity, one without. The very existence of such an equivalence imposes strong consistency conditions which are, in the nature of the case, hard to satisfy. Recently a particularly deep condition of this kind, relating the minimum of a probe brane action to a gravitational bulk action (in a Euclidean formulation), has been recognised; and the question arises as to the circumstances under which it, and its Lorentzian counterpart, are satisfied. We discuss the fact that there are physically interesting situations in which one or both versions might, in principle, emph{not} be satisfied. These arise in two distinct circumstances: first, when the bulk is not an Einstein manifold, and, second, in the presence of angular momentum. Focusing on the application of holography to the quark-gluon plasma (of the various forms arising in the early Universe and in heavy-ion collisions), we find that these potential violations never actually occur. This suggests that the consistency condition is a "law of physics" expressing a particular aspect of holography.
Full work available at URL: https://arxiv.org/abs/1504.07344
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