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Dynamical black holes and expanding plasmas.

Figueras, Pau and Hubeny, Veronika E. and Rangamani, Mukund and Ross, Simon F. (2009) 'Dynamical black holes and expanding plasmas.', Journal of high energy physics., 2009 (04). p. 137.


We analyse the global structure of time-dependent geometries dual to expanding plasmas, considering two examples: the boost invariant Bjorken flow, and the conformal soliton flow. While the geometry dual to the Bjorken flow is constructed in a perturbation expansion at late proper time, the conformal soliton flow has an exact dual (which corresponds to a Poincaré patch of Schwarzschild-AdS). In particular, we discuss the position and area of event and apparent horizons in the two geometries. The conformal soliton geometry offers a sharp distinction between event and apparent horizon; whereas the area of the event horizon diverges, that of the apparent horizon stays finite and constant. This suggests that the entropy of the corresponding CFT state is related to the apparent horizon rather than the event horizon.

Item Type:Article
Keywords:AdS-CFT and dS-CFT Correspondence, Gauge-gravity correspondence.
Full text:(NA) Not Applicable
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Publisher statement:© SISSA 2009. Published by IOP Publishing for SISSA. This is an author-created, un-copyedited version of an article accepted for publication in Journal of High Energy Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at
Date accepted:No date available
Date deposited:No date available
Date of first online publication:April 2009
Date first made open access:No date available

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