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• W2076246899 endingPage "075001" @default.
• W2076246899 startingPage "075001" @default.
• W2076246899 abstract "We construct stationary non-equilibrium black funnels locally asymptotic to global AdS4 in vacuum Einstein-Hilbert gravity with negative cosmological constant. These are non-compactly-generated black holes in which a single connected bulk horizon extends to meet the conformal boundary. Thus the induced (conformal) boundary metric has smooth horizons as well. In our examples, the boundary spacetime contains a pair of black holes connected through the bulk by a tubular bulk horizon. Taking one boundary black hole to be hotter than the other ($Delta T neq 0$) prohibits equilibrium. The result is a so-called flowing funnel, a stationary bulk black hole with a non-Killing horizon that may be said to transport heat toward the cooler boundary black hole. While generators of the bulk future horizon evolve toward zero expansion in the far future, they begin at finite affine parameter with infinite expansion on a singular past horizon characterized by power-law divergences with universal exponents. We explore both the horizon generators and the boundary stress tensor in detail. While most of our results are numerical, a semi-analytic fluid/gravity description can be obtained by passing to a one-parameter generalization of the above boundary conditions. The new parameter detunes the temperatures $T_{bulk BH}$ and $T_{bndy BH}$ of the bulk and boundary black holes, and we may then take alpha = $T_mathrm{bndy BH}/T_mathrm{bulk BH}$ and Delta T small to control the accuracy of the fluid-gravity approximation. In the small alpha, Delta T regime we find excellent agreement with our numerical solutions. For our cases the agreement also remains quite good even for $alpha sim 0.8$. In terms of a dual CFT, our alpha = 1 solutions describe heat transport via a large N version of Hawking radiation through a deconfined plasma that couples efficiently to both boundary black holes." @default.
• W2076246899 created "2016-06-24" @default.
• W2076246899 creator A5044405785 @default.
• W2076246899 creator A5061177898 @default.
• W2076246899 creator A5090449534 @default.
• W2076246899 date "2013-03-05" @default.
• W2076246899 modified "2023-09-23" @default.
• W2076246899 title "AdS flowing black funnels: stationary AdS black holes with non-Killing horizons and heat transport in the dual CFT" @default.
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• W2076246899 doi "https://doi.org/10.1088/0264-9381/30/7/075001" @default.
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